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what is science?
Assignment Directions: Using the internet or any other sources that you like, write an essay on each of the following obj ...
what is science?
Assignment Directions: Using the internet or any other sources that you like, write an essay on each of the following objectives (essays should be 1-2 pages in length, single-spaced, no larger than 12-point font):
List the effect of technology on air, water, and land quality.
List possible solutions for air, water, and land pollution.
List measures by which industries and individuals can conserve natural resources and energy.
List examples of environmental planning and waste management.
Describe ecosystems with respect to energy flow, food cycles, pollution, and the impact of man.
Describe factors of population dynamics (How does the increase or decrease of a population influence the environment?).
Describe at least three different sources of energy and list advantages and disadvantages of each.
Be sure to cite your resources for this assignment. All resources must be online for validation by the instructor. Provide the url for each resource you cite. Each essay should have resources cited directly below it. Do not list all of the resources at the end of the essay. Either APA or MLA format may be used for citing resources. You must use other sources besides Wikipedia in this assignment.
Mayzent Is Known as A Prescription Medicine Organic Chemistry Essay
Final Paper Organic ChemistryThere are ~20-50 new pharmaceutical drugs released each year. You must choose a drug that has ...
Mayzent Is Known as A Prescription Medicine Organic Chemistry Essay
Final Paper Organic ChemistryThere are ~20-50 new pharmaceutical drugs released each year. You must choose a drug that has been released within the last 5 years and write about it. You can find your drug by doing a Google search.• Times new Roman font 12 must be used.• The beginning of your paper (page 1) should have the following information in the order listed:1. your name2. the school’s name3. course name4. date 5. Name of the drug your focusing on6. Lewis structure of the drug • The body of the paper must start with the name of the drug inbold.• The body of the paper must contain between 900-1200 words (about 3 pages).• The first ~1/2 of your paper should summarize the drug (uses, side effects, synthesis etc...)• The second ~1/2 of your paper should explain how the first half of your paper relates to concepts that you learned about in the course (certain functional groups, reactions, organic properties, nomenclature etc ...)• Works cited / references must be listed at the end of the paper.• When you have completed your paper, copy and paste it into blackboard. On the blackboard site click “learning content” then “final paper material” then “final paper”. You can then paste your paper in that section and submit it. You can do it about alcohol this class is organic chemistry 2
NVCC Faradays Law of Electromagnetic Induction and Lenzs Law Problems
Please do the simulation and follow the instructions from the word document. Please answer all the questions in full sente ...
NVCC Faradays Law of Electromagnetic Induction and Lenzs Law Problems
Please do the simulation and follow the instructions from the word document. Please answer all the questions in full sentences. For the paragraph please put 5 to 6 sentences. Make sure to bold the answers you give for the questions. No lab report is needed.
6 pages
Deliverable 05 English Composition Final
Prisons should not be privatized because punishing criminal activity should not be a profit business. It is not the place ...
Deliverable 05 English Composition Final
Prisons should not be privatized because punishing criminal activity should not be a profit business. It is not the place of private prisons to ...
Hypertension Risk Factors Questions
1.(04.01 LC)A patient does not have a family history of hypertension. This means which of the following? ( 2 points)She wi ...
Hypertension Risk Factors Questions
1.(04.01 LC)A patient does not have a family history of hypertension. This means which of the following? ( 2 points)She will not get hypertension, even if she is a heavy smoker.She will not get hypertension, regardless of her red blood cell count.She could still get hypertension if she becomes a heavy smoker.She could still get hypertension if her red blood cell count drops.2.(06.02 MC)Which of the following are examples of the physical and chemical nonspecific immune system? (2 points)Physical: skin and enzymes; chemical: inflammation and feverPhysical: skin and mucous membranes; chemical: tears and salivaPhysical: stomach acids and enzymes; chemical: histamines and white blood cellsPhysical: inflammation and fever; chemical: white blood cells and histamines3.(06.02 MC)What are the functions of T memory cells? (2 points)To remember a specific antibody and to manufacture the corresponding antigen when neededTo remember a specific antigen and to stimulate the immune system to react faster to invasionTo recognize antibodies and to halt the activation phase in the immune systemTo recognize antigens and to begin the activation phase in the immune system4.(04.01 MC)Which of the following would create the second heart sound? (2 points)Closing of the valves when the blood leaves the heartOpening of the valves when blood moves into the heartBlood moving to the ventriclesBlood moving out of the atrium5.(06.04 MC)Which of the following groups of organs provide secretions that nourish and protect sperm cells? (2 points)Vas deferens; epididymis; Cowper's glandsSeminal vesicles; Cowper's glands; prostate glandSeminal vesicles; seminiferous tubules; epididymisVas deferens; seminiferous tubules; prostate gland6.(04.02 MC)Image Courtesy of 3DScience.comBased on the diagram above, which of the labeled constituents carry oxygen from the lungs to other cells in the body? (2 points)DCBA7.(04.03 MC)Hemostasis involves which of the following components? (2 points)Platelets, endothelium cells, and fibrinPlatelets, fibrin, and red blood cellsCollagen fibers, endothelium cells, and plateletsCollagen fibers, endothelium cells, and fibrin8.(05.02 MC)Which of the following correctly describes the structure and its function? (2 points)Cardiac sphincter; controls what food enters the stomachStomach; mixes chum and foodSmall intestine; absorbs fats and fatty acidsColon; food is chemically digested9.(04.02 LC)Which of the following is the largest component of blood plasma? (2 points)White blood cellsRed blood cellsPlateletsWater10.(06.02 LC)A person who was infected with many common diseases as a child will contain more of which of the following compared to a child who was not exposed to many diseases? (2 points)Memory cells that provide a specific defenseMemory cells that provide a nonspecific defenseMonocytes that provide a specific defenseMonocytes that provide a nonspecific defense11.(04.02 MC)According to the National Institute of Health, peripheral arterial disease (PAD) happens when there is a narrowing of the blood vessels outside of your heart. The cause of PAD is atherosclerosis. This can reduce or stop blood flow, usually to the legs, causing them to hurt or feel numb. If severe enough, blocked blood flow can cause tissue death. If this condition is left untreated, a foot or leg may need to be amputated.Based on the passage above, which of the following would indicate PAD? (2 points)Low flexibility of blood vessels and increased number of white blood cellsHigh flexibility of blood vessels and decreased number of white blood cellsLow flexibility of blood vessels in the limbs and high blood pressureHigh flexibility of blood vessels in the limbs and low blood pressure12.(04.02 LC)Which of the following is an example of a disease that is properly matched with one of its environmental risk factors? (2 points)High blood pressure -geneticsArteriosclerosis-dietHemophilia- poor nutritionAnemia-family history13.(04.05 HC)Slowing down or stopping an activity because you can't catch your breath is one sign of COPD, chronic obstructive pulmonary disease. In COPD the airways of the lungs are narrowed, and this makes it hard to get air out and causes an "out of breath" feeling. Other symptoms of COPD can include frequent coughing, excess mucus, and sometimes wheezing. Some patients with COPD also show loss of lung tissue on chest x-rays-a condition called "emphysema."Explain what is meant by the statement: "In COPD the airways of the lungs are narrowed." Specifically, what part of the respiratory system will be narrowed? Then explain how emphysema could lead to shortness of breath. Be sure to identify and describe the specific tissues involved. (5 points)14.(06.02 MC)Where is urea produced, and where is it removed from the blood? (2 points)Kidneys; bladderBladder; liverKidneys; liverLiver; kidneys15.(05.01 MC)A tear in the right rib muscles has caused the muscles to spasm, meaning they are locked in a contracted state. How would this affect breathing in the right lung? (2 points)It would prevent inspiration.It would prevent expiration.It would reduce the force of inspiration.It would reduce the force of expiration.16.(04.01 MC)How does smoking and arterial plaques increase the risk of hypertension? (2 points)Both increase blood volume.Both decrease blood volume.Both expand the diameter of the blood vessels.Both constrict the diameter of the blood vessels.17.(05.01 MC)Abdominal breathing is a condition in which only the inferior half of the lungs can be seen expanding and contracting with each breath. Which of the following would cause abdominal breathing? (2 points)Damage to the nerves that control the diaphragmDamage to the nerves that control the rib musclesDamage to the medulla oblongataDamage to the respiratory center18.(04.03 LC)What is the definition of hemostasis? (2 points)The mechanisms that regulate blood flow through the arteries and veinsThe mechanisms that regulate the dilation and constriction of blood vesselsThe mechanisms that regulate the volume of blood flowing through blood vesselsThe mechanisms that regulate bleeding in an organ or body part due to an injury19.(05.04 MC)© Public DomainIn the enzyme reaction above, catechol is the substrate, oxygen is a reactant, catechol oxidase is the enzyme, benzoquinone is the product, and water (H2O) is a by-product. Which of the following will decrease the rate of this reaction? (2 points)Reducing the amount of oxygenReducing the amount of catecholIncreasing the amount of catechol oxidaseIncreasing the amount of benzoquinone20.(06.03 MC)What is the name and function of the main lymphatic tissue found in the intestines? (2 points)Thymus gland: enables the conversion of immature lymphocytes into mature T cellsThymus gland: contains B cells that initiate the humoral immune response during infectionPayer's patch: enables the conversion of immature lymphocytes into mature T cellsPayer's patch: contains B cells that initiate the humoral immune response during infection21.(04.01 MC)Exercise can reduce the amount of arterial plaque in blood vessels. Which of the following effects would this produce on the circulatory system? (2 points)Reduce blood pressure by increasing the diameter of the blood vesselsIncrease blood pressure by increasing the diameter of the blood vesselsReduce blood pressure by decreasing the diameter of the blood vesselsIncrease blood pressure by decreasing the diameter of the blood vessels22.(06.03 MC)Which of the following describes the function of lymph nodes? (2 points)Filter lymph using lymphocytesFilter blood using antibodiesFilter lymph using antibodiesFilter blood using lymphocytes23.(05.02 MC)Which of the following would accompany a high-protein meal moving through the digestive system? (2 points)The release of gastrin, which triggers the liver to release bileThe release of secretin, which triggers the stomach to release pepsinThe release of secretin, which triggers the liver to release bileThe release of gastrin, which triggers the stomach to release pepsin24.(06.01 HC)People who suffer renal failure are treated with a medical process called dialysis. A dialysis machine carries out the role of the kidneys. Explain the functions that a dialysis machine must perform in order to carry out the work of the kidneys. In your answer, include which structures of a working kidney carry out each function. (5 points)25.(04.02 MC)According to the National Institute of Health, ventricular tachycardia is a fast, regular beating of the ventricles that may last for only a few seconds or for much longer. A few beats of ventricular tachycardia often doesn't cause problems. However, episodes that last for more than a few seconds can be dangerous. Ventricular tachycardia can turn into other, more serious arrhythmias, such as ventricular fibrillation.Based on the passage above, how will prolonged ventricular tachycardia affect blood pressure? (2 points)It will increase blood pressure because the ventricles are contracting with more force.It will increase blood pressure because the ventricles are filling with more blood between beats.It will decrease blood pressure because there is a longer rest period beats of the ventricles.It will decrease blood pressure because the ventricles are filling with less blood between beats.26.(05.04 MC)Which of the following would increase the rate of an enzyme-catalyzed reaction? (2 points)Increase the concentration of inhibitors present in the reaction.Decrease the concentration of cofactors present in the reaction.Increase the substrate concentration and increase the enzyme concentration.Decrease the substrate concentration and decrease the enzyme concentration.27.(04.01 LC)Which of the following prevents blood from flowing backward through the circulatory system? (2 points)Smooth muscle in the arteriesSmooth muscle in the veinsValves in the arteriesValves in the veins28.(04.01 MC)Arteries gradually constrict between each heartbeat. This would allow for which of the following? (2 points)Blood pressure would drop during a heartbeat.Blood pressure would increase between heartbeats.Blood flow would be temporarily blocked between heartbeats.Blood volume would increase between heartbeats.29.(06.04 MC)Based on the diagram above, which best describes the structure and function of C? (2 points) Hollow organ that contains and nourishes the embryo and fetusMuscular tube into which egg cells are released for fertilizationNarrow passage that transports the egg from the uterus to the vaginaSexual gland in which egg cells are formed and stored until ovulation30.(05.02 MC)How does acetylcholine influence chemical and physical digestion? (2 points)Chemical-triggers release of pancreatic enzyme; Physical-triggers stomach muscle contractionChemical-triggers release of bile; Physical-triggers tongue contractionChemical-triggers stomach muscle contraction; Physical-triggers release of pancreatic enzymeChemical-triggers tongue contraction; Physical-triggers release of bile31.(06.05 MC) © Image Courtesy of 3DScience.comBased on the diagram above, which of the following describes the role of organ A? (2 points) It enables maternal-fetal blood exchange so the fetus receives oxygen removes nutrients and waste products.It delivers oxygen and nutrients and removes carbon dioxide and other waste products through the skin of the fetus.It connects the fetus to the uterus, which is the source of oxygen, nutrients, and waste disposal for the fetus.It provides oxygen and nutrients and removes carbon dioxide and other waste products from the fetus's blood.32.(06.01 MC)According to the National Institute of Health, adhesions are bands of fibrous tissue. They can connect the loops of the intestines to each other, to nearby organs, or to the wall of the abdomen. They can pull sections of the intestines out of place. This may block food from passing through the intestine. Adhesions can sometimes cause infertility in women by preventing fertilized eggs from reaching the uterus.What is one way that an adhesion could prevent fertilized eggs from reaching the uterus? (2 points)By the intestines adhering to the epididymisBy the intestines adhering to the vaginaBy an adhesion putting pressure on the fallopian tubesBy an adhesion putting pressure on the ovaries33.(04.02 MC)Which of the formed elements of blood is primarily involved in clotting? (2 points)White blood cellsRed blood cellsPlateletsPlasma34.(06.03 MC)Which of the following would increase the spread of cancer through the body? (2 points)Low blood-flow rateLow lymph-flow rateLow antibody countLow lymphocyte count35.(05.03 MC)Why are nucleic acids not considered a nutrient? (2 points)Only macromolecules containing nitrogen are considered nutrients.Only macromolecules that produce enzymes are considered nutrients.They are information-storing molecules and are not used for energy storage.They are structural molecules and are not used for energy storage.36.(05.02 MC)Which of the following would increase the rate of an enzyme-catalyzed reaction? (2 points)Decreasing enzyme, decreasing substrate, decreasing cofactorsDecreasing enzyme, decreasing inhibitors, decreasing cofactorsIncreasing enzyme, increasing substrate, increasing cofactorsIncreasing enzyme, increasing inhibitors, increasing cofactors
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what is science?
Assignment Directions: Using the internet or any other sources that you like, write an essay on each of the following obj ...
what is science?
Assignment Directions: Using the internet or any other sources that you like, write an essay on each of the following objectives (essays should be 1-2 pages in length, single-spaced, no larger than 12-point font):
List the effect of technology on air, water, and land quality.
List possible solutions for air, water, and land pollution.
List measures by which industries and individuals can conserve natural resources and energy.
List examples of environmental planning and waste management.
Describe ecosystems with respect to energy flow, food cycles, pollution, and the impact of man.
Describe factors of population dynamics (How does the increase or decrease of a population influence the environment?).
Describe at least three different sources of energy and list advantages and disadvantages of each.
Be sure to cite your resources for this assignment. All resources must be online for validation by the instructor. Provide the url for each resource you cite. Each essay should have resources cited directly below it. Do not list all of the resources at the end of the essay. Either APA or MLA format may be used for citing resources. You must use other sources besides Wikipedia in this assignment.
Mayzent Is Known as A Prescription Medicine Organic Chemistry Essay
Final Paper Organic ChemistryThere are ~20-50 new pharmaceutical drugs released each year. You must choose a drug that has ...
Mayzent Is Known as A Prescription Medicine Organic Chemistry Essay
Final Paper Organic ChemistryThere are ~20-50 new pharmaceutical drugs released each year. You must choose a drug that has been released within the last 5 years and write about it. You can find your drug by doing a Google search.• Times new Roman font 12 must be used.• The beginning of your paper (page 1) should have the following information in the order listed:1. your name2. the school’s name3. course name4. date 5. Name of the drug your focusing on6. Lewis structure of the drug • The body of the paper must start with the name of the drug inbold.• The body of the paper must contain between 900-1200 words (about 3 pages).• The first ~1/2 of your paper should summarize the drug (uses, side effects, synthesis etc...)• The second ~1/2 of your paper should explain how the first half of your paper relates to concepts that you learned about in the course (certain functional groups, reactions, organic properties, nomenclature etc ...)• Works cited / references must be listed at the end of the paper.• When you have completed your paper, copy and paste it into blackboard. On the blackboard site click “learning content” then “final paper material” then “final paper”. You can then paste your paper in that section and submit it. You can do it about alcohol this class is organic chemistry 2
NVCC Faradays Law of Electromagnetic Induction and Lenzs Law Problems
Please do the simulation and follow the instructions from the word document. Please answer all the questions in full sente ...
NVCC Faradays Law of Electromagnetic Induction and Lenzs Law Problems
Please do the simulation and follow the instructions from the word document. Please answer all the questions in full sentences. For the paragraph please put 5 to 6 sentences. Make sure to bold the answers you give for the questions. No lab report is needed.
6 pages
Deliverable 05 English Composition Final
Prisons should not be privatized because punishing criminal activity should not be a profit business. It is not the place ...
Deliverable 05 English Composition Final
Prisons should not be privatized because punishing criminal activity should not be a profit business. It is not the place of private prisons to ...
Hypertension Risk Factors Questions
1.(04.01 LC)A patient does not have a family history of hypertension. This means which of the following? ( 2 points)She wi ...
Hypertension Risk Factors Questions
1.(04.01 LC)A patient does not have a family history of hypertension. This means which of the following? ( 2 points)She will not get hypertension, even if she is a heavy smoker.She will not get hypertension, regardless of her red blood cell count.She could still get hypertension if she becomes a heavy smoker.She could still get hypertension if her red blood cell count drops.2.(06.02 MC)Which of the following are examples of the physical and chemical nonspecific immune system? (2 points)Physical: skin and enzymes; chemical: inflammation and feverPhysical: skin and mucous membranes; chemical: tears and salivaPhysical: stomach acids and enzymes; chemical: histamines and white blood cellsPhysical: inflammation and fever; chemical: white blood cells and histamines3.(06.02 MC)What are the functions of T memory cells? (2 points)To remember a specific antibody and to manufacture the corresponding antigen when neededTo remember a specific antigen and to stimulate the immune system to react faster to invasionTo recognize antibodies and to halt the activation phase in the immune systemTo recognize antigens and to begin the activation phase in the immune system4.(04.01 MC)Which of the following would create the second heart sound? (2 points)Closing of the valves when the blood leaves the heartOpening of the valves when blood moves into the heartBlood moving to the ventriclesBlood moving out of the atrium5.(06.04 MC)Which of the following groups of organs provide secretions that nourish and protect sperm cells? (2 points)Vas deferens; epididymis; Cowper's glandsSeminal vesicles; Cowper's glands; prostate glandSeminal vesicles; seminiferous tubules; epididymisVas deferens; seminiferous tubules; prostate gland6.(04.02 MC)Image Courtesy of 3DScience.comBased on the diagram above, which of the labeled constituents carry oxygen from the lungs to other cells in the body? (2 points)DCBA7.(04.03 MC)Hemostasis involves which of the following components? (2 points)Platelets, endothelium cells, and fibrinPlatelets, fibrin, and red blood cellsCollagen fibers, endothelium cells, and plateletsCollagen fibers, endothelium cells, and fibrin8.(05.02 MC)Which of the following correctly describes the structure and its function? (2 points)Cardiac sphincter; controls what food enters the stomachStomach; mixes chum and foodSmall intestine; absorbs fats and fatty acidsColon; food is chemically digested9.(04.02 LC)Which of the following is the largest component of blood plasma? (2 points)White blood cellsRed blood cellsPlateletsWater10.(06.02 LC)A person who was infected with many common diseases as a child will contain more of which of the following compared to a child who was not exposed to many diseases? (2 points)Memory cells that provide a specific defenseMemory cells that provide a nonspecific defenseMonocytes that provide a specific defenseMonocytes that provide a nonspecific defense11.(04.02 MC)According to the National Institute of Health, peripheral arterial disease (PAD) happens when there is a narrowing of the blood vessels outside of your heart. The cause of PAD is atherosclerosis. This can reduce or stop blood flow, usually to the legs, causing them to hurt or feel numb. If severe enough, blocked blood flow can cause tissue death. If this condition is left untreated, a foot or leg may need to be amputated.Based on the passage above, which of the following would indicate PAD? (2 points)Low flexibility of blood vessels and increased number of white blood cellsHigh flexibility of blood vessels and decreased number of white blood cellsLow flexibility of blood vessels in the limbs and high blood pressureHigh flexibility of blood vessels in the limbs and low blood pressure12.(04.02 LC)Which of the following is an example of a disease that is properly matched with one of its environmental risk factors? (2 points)High blood pressure -geneticsArteriosclerosis-dietHemophilia- poor nutritionAnemia-family history13.(04.05 HC)Slowing down or stopping an activity because you can't catch your breath is one sign of COPD, chronic obstructive pulmonary disease. In COPD the airways of the lungs are narrowed, and this makes it hard to get air out and causes an "out of breath" feeling. Other symptoms of COPD can include frequent coughing, excess mucus, and sometimes wheezing. Some patients with COPD also show loss of lung tissue on chest x-rays-a condition called "emphysema."Explain what is meant by the statement: "In COPD the airways of the lungs are narrowed." Specifically, what part of the respiratory system will be narrowed? Then explain how emphysema could lead to shortness of breath. Be sure to identify and describe the specific tissues involved. (5 points)14.(06.02 MC)Where is urea produced, and where is it removed from the blood? (2 points)Kidneys; bladderBladder; liverKidneys; liverLiver; kidneys15.(05.01 MC)A tear in the right rib muscles has caused the muscles to spasm, meaning they are locked in a contracted state. How would this affect breathing in the right lung? (2 points)It would prevent inspiration.It would prevent expiration.It would reduce the force of inspiration.It would reduce the force of expiration.16.(04.01 MC)How does smoking and arterial plaques increase the risk of hypertension? (2 points)Both increase blood volume.Both decrease blood volume.Both expand the diameter of the blood vessels.Both constrict the diameter of the blood vessels.17.(05.01 MC)Abdominal breathing is a condition in which only the inferior half of the lungs can be seen expanding and contracting with each breath. Which of the following would cause abdominal breathing? (2 points)Damage to the nerves that control the diaphragmDamage to the nerves that control the rib musclesDamage to the medulla oblongataDamage to the respiratory center18.(04.03 LC)What is the definition of hemostasis? (2 points)The mechanisms that regulate blood flow through the arteries and veinsThe mechanisms that regulate the dilation and constriction of blood vesselsThe mechanisms that regulate the volume of blood flowing through blood vesselsThe mechanisms that regulate bleeding in an organ or body part due to an injury19.(05.04 MC)© Public DomainIn the enzyme reaction above, catechol is the substrate, oxygen is a reactant, catechol oxidase is the enzyme, benzoquinone is the product, and water (H2O) is a by-product. Which of the following will decrease the rate of this reaction? (2 points)Reducing the amount of oxygenReducing the amount of catecholIncreasing the amount of catechol oxidaseIncreasing the amount of benzoquinone20.(06.03 MC)What is the name and function of the main lymphatic tissue found in the intestines? (2 points)Thymus gland: enables the conversion of immature lymphocytes into mature T cellsThymus gland: contains B cells that initiate the humoral immune response during infectionPayer's patch: enables the conversion of immature lymphocytes into mature T cellsPayer's patch: contains B cells that initiate the humoral immune response during infection21.(04.01 MC)Exercise can reduce the amount of arterial plaque in blood vessels. Which of the following effects would this produce on the circulatory system? (2 points)Reduce blood pressure by increasing the diameter of the blood vesselsIncrease blood pressure by increasing the diameter of the blood vesselsReduce blood pressure by decreasing the diameter of the blood vesselsIncrease blood pressure by decreasing the diameter of the blood vessels22.(06.03 MC)Which of the following describes the function of lymph nodes? (2 points)Filter lymph using lymphocytesFilter blood using antibodiesFilter lymph using antibodiesFilter blood using lymphocytes23.(05.02 MC)Which of the following would accompany a high-protein meal moving through the digestive system? (2 points)The release of gastrin, which triggers the liver to release bileThe release of secretin, which triggers the stomach to release pepsinThe release of secretin, which triggers the liver to release bileThe release of gastrin, which triggers the stomach to release pepsin24.(06.01 HC)People who suffer renal failure are treated with a medical process called dialysis. A dialysis machine carries out the role of the kidneys. Explain the functions that a dialysis machine must perform in order to carry out the work of the kidneys. In your answer, include which structures of a working kidney carry out each function. (5 points)25.(04.02 MC)According to the National Institute of Health, ventricular tachycardia is a fast, regular beating of the ventricles that may last for only a few seconds or for much longer. A few beats of ventricular tachycardia often doesn't cause problems. However, episodes that last for more than a few seconds can be dangerous. Ventricular tachycardia can turn into other, more serious arrhythmias, such as ventricular fibrillation.Based on the passage above, how will prolonged ventricular tachycardia affect blood pressure? (2 points)It will increase blood pressure because the ventricles are contracting with more force.It will increase blood pressure because the ventricles are filling with more blood between beats.It will decrease blood pressure because there is a longer rest period beats of the ventricles.It will decrease blood pressure because the ventricles are filling with less blood between beats.26.(05.04 MC)Which of the following would increase the rate of an enzyme-catalyzed reaction? (2 points)Increase the concentration of inhibitors present in the reaction.Decrease the concentration of cofactors present in the reaction.Increase the substrate concentration and increase the enzyme concentration.Decrease the substrate concentration and decrease the enzyme concentration.27.(04.01 LC)Which of the following prevents blood from flowing backward through the circulatory system? (2 points)Smooth muscle in the arteriesSmooth muscle in the veinsValves in the arteriesValves in the veins28.(04.01 MC)Arteries gradually constrict between each heartbeat. This would allow for which of the following? (2 points)Blood pressure would drop during a heartbeat.Blood pressure would increase between heartbeats.Blood flow would be temporarily blocked between heartbeats.Blood volume would increase between heartbeats.29.(06.04 MC)Based on the diagram above, which best describes the structure and function of C? (2 points) Hollow organ that contains and nourishes the embryo and fetusMuscular tube into which egg cells are released for fertilizationNarrow passage that transports the egg from the uterus to the vaginaSexual gland in which egg cells are formed and stored until ovulation30.(05.02 MC)How does acetylcholine influence chemical and physical digestion? (2 points)Chemical-triggers release of pancreatic enzyme; Physical-triggers stomach muscle contractionChemical-triggers release of bile; Physical-triggers tongue contractionChemical-triggers stomach muscle contraction; Physical-triggers release of pancreatic enzymeChemical-triggers tongue contraction; Physical-triggers release of bile31.(06.05 MC) © Image Courtesy of 3DScience.comBased on the diagram above, which of the following describes the role of organ A? (2 points) It enables maternal-fetal blood exchange so the fetus receives oxygen removes nutrients and waste products.It delivers oxygen and nutrients and removes carbon dioxide and other waste products through the skin of the fetus.It connects the fetus to the uterus, which is the source of oxygen, nutrients, and waste disposal for the fetus.It provides oxygen and nutrients and removes carbon dioxide and other waste products from the fetus's blood.32.(06.01 MC)According to the National Institute of Health, adhesions are bands of fibrous tissue. They can connect the loops of the intestines to each other, to nearby organs, or to the wall of the abdomen. They can pull sections of the intestines out of place. This may block food from passing through the intestine. Adhesions can sometimes cause infertility in women by preventing fertilized eggs from reaching the uterus.What is one way that an adhesion could prevent fertilized eggs from reaching the uterus? (2 points)By the intestines adhering to the epididymisBy the intestines adhering to the vaginaBy an adhesion putting pressure on the fallopian tubesBy an adhesion putting pressure on the ovaries33.(04.02 MC)Which of the formed elements of blood is primarily involved in clotting? (2 points)White blood cellsRed blood cellsPlateletsPlasma34.(06.03 MC)Which of the following would increase the spread of cancer through the body? (2 points)Low blood-flow rateLow lymph-flow rateLow antibody countLow lymphocyte count35.(05.03 MC)Why are nucleic acids not considered a nutrient? (2 points)Only macromolecules containing nitrogen are considered nutrients.Only macromolecules that produce enzymes are considered nutrients.They are information-storing molecules and are not used for energy storage.They are structural molecules and are not used for energy storage.36.(05.02 MC)Which of the following would increase the rate of an enzyme-catalyzed reaction? (2 points)Decreasing enzyme, decreasing substrate, decreasing cofactorsDecreasing enzyme, decreasing inhibitors, decreasing cofactorsIncreasing enzyme, increasing substrate, increasing cofactorsIncreasing enzyme, increasing inhibitors, increasing cofactors
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