plant diversity and principles of biology , biology homework help

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Its very important follow instructions please go on this website to get answers:http://botanynotes.net/botany/index.htm

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to get anwers principles of biology:http://www.bionotes.net/summer/3assign.htm

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Plant diversity quiz 7 Answers can be found in Plant Structure: Primary Structure of Shoots and Leaves. 1. Roots and shoots share the same following primary tissues: ______________________. A. vascular, endodermis, and pericycle B. vascular, epidermis, and ground tissues C. hairs and protective caps for the apical meristems D. ground tissue and endodermis 2. Roots have the following primary tissues that are not found in stems: ______________________. A. epidermis and pericycle B. vascular and ground tissues C. endodermis and pericycle D. none of the above 3. The endodermis of the root acts like a ______________________. A. barrier for excluding minerals from the transpiration stream B. pump for pushing water upwards in the phloem C. protective skin for keeping water from evaporating from the cortex D. filter system for water entering the xylem 4. The pericycle is ______________________. A. a meristematic tissue responsible for the production of lateral roots B. a protective tissue for the delicate cells of the xylem C. an absorptive tissue for extracting minerals from the soil solution D. a tissue whose function is unknown 5. Root hairs ______________________. A. are formed by meristematic activity of the pericycle B. protect the root from damage from predators C. are epidermal cells that absorb water and minerals D. are found mostly on older portions of roots 6. The cortex of the root is composed of ______________________. A. epidermal cells for protection B. vessel elements for food conduction C. fiber cells for strength and support D. parenchyma cells for starch storage 7. Leaves ______________________. A. lack vascular tissue B. contain the same tissues as roots C. are produced by divisions of the pericycle D. have a cutinized epidermis 8. The hairs found on leaves ______________________. A. function in attracting animals for pollination B. have a different function from root hairs C. function in photosynthesis D. have the same function as root hairs 9. The spongy (lower) layer of leaf mesophyll is specialized for maximum______________________. A. gas exchange B. sunlight absorption C. water retention D. all of the above are correct 10. The upward movement of water and minerals in the xylem is called the ______________________. A. assimilate stream B. photosynthesis stream C. osmotic stream D. transpiration stream Quiz 8 Answers to the following questions can be found in Vascular Plants: Anthophyta 1. The flowering plants have dominated the land for over ________________ million years. A. 360 B. 280 C. 130 D. 65 2. The stamens, collectively called the androecium, are ______________________. A. sterile B. modified branches C. megasporophylls D. microsporophylls 3. The carpels, collectively called the gynoecium, are ______________________. A. megasporophylls B. sterile petals C. modified branches D. microsporophylls 4. Flowers are said to be imperfect if they ______________________. A. are wind pollinated B. lack petals C. lack either stamens or carpels D. are bisexual 5. The exine layer of pollen grains is composed of ______________________. A. cutin B. sporopollenin C. lignin D. suberin 6. Double fertilization ______________________. A. refers to the union of one sperm with the egg and the other sperm with the polar nuclei B. is a defining characteristic of angiosperms C. leads to the formation of embryo and endosperm D. all of the above are correct 7. The angiosperms are classified in___________________________. A. two phyla, "seedless vascular plants" and "seed-producing vascular plants" B. the same phylum as conifers C. three classes, the eudicotyledoneae, the monocotyledoneae, and the angiophyta D. a single phylum, the anthophyta 8. The most primitive, extant plant of the basal angiosperms is _______________________. A. Austrobaileya B. Nymphaea C. Magnolia D. Amborella 9. Flowering plants appeared in the fossil record ___________________________. A. in the Devonian, just after the rhyniophyes became extinct, about 360 million years ago B. at the beginning of the Permian Period, along with the ferns and gymnosperms, about 285 million years ago C. near the end of the Triassic Period, about the time of dinosaurs, about 230 million years ago D. near the start of the Cretaceous Period, about 130 million years ago 10. Approximately ___________________ of flowering plants are insect pollinated. A. 85 percent B. 65 percent C. 50 percent D. 45 percent Study guide Quiz 7 Answers can be found in text chapter on Invertebrate Life Histories in the Animals section 1. Strobilation A. is asexual reproduction B. results in one fertilized egg becoming many, many offspring C. produces ephyra D. all of the above 2. Rhopalia A. are the eyes of the jellyfish B. control swimming motion C. are sensitive to gravity D. all of the above 3. California Horn Snails feed on A. Salicornia B. fish scales C. diatoms D. none of the above 4. The flatworm stage that first enters the snail is the A. ephyra B. cercaria C. miracidium D. sporocyst 5. The flatworm stage that exits the snail is the A. ephyra B. cercaria C. miracidium D. sporocyst 6. The sporocyst A. is the sexual stage of the flatworm within the crab B. encysts on a crab's exoskeleton C. produces rediae in the digestive gland of the snail D. none of the above 7. A high diversity of parasites in an ecosystem A. indicates an ecosystem in decline B. indicates low biodiversity C. indicates a complex and healthy community D. indicates missing intermediate hosts Study guide 8. Endopterygotes A. have wings that develop internally B. have larval stages that do not resemble the adult C. can have chewing or sucking mouthparts D. all of the above 9. The advantage of being an endopterygote is that A. there is no competition with your offspring for food B. predators are confused because adults look like their offspring C. there is no inactive stage during development D. all stages are adapted to the same conditions 10. Sexual behavior in the Red-backed Spider A. requires sperm transfer by pedipalps attached to the head B. includes semaphore signalling by the male to the female C. requires rolling the female to the side D. all of the above Quiz 8 Answers to questions can be found in Animals: Early Chordates. 1. Each of the following is a chordate characteristic EXCEPT A. pharynx with gill slits B. a stiffening vertebral column C. tail extending beyond anus D. dorsal, hollow nerve cord 2. The "endostyle" is a term referring to A. the notochord B. the vertebral column C. a supporting rod within the pharynx D. a mucus-secreting gland 3. The structure of thyroxin requires the incorporation of A. 2 iodine atoms B. 3 iodine atoms C. 4 iodine atoms D. 5 iodine atoms 4. The term "chordate" includes the following deuterostomes, except Study guide A. tunicates B. seastars C. lancelets D. vertebrates 5. All of the five chordate characteristics A. are possessed by all chordates at all times B. are found only in embryonic or larval stages C. can be categorized as serving either locomotory or feeding activities D. are also found in other deuterostomes, like Echinodermata 6. One of the characteristics of the habitat from which fish became adapted to life on land A. was a shallow marine swamp B. was a cold stream of high oxygen content C. was a cool pond which dried periodically D. was a warm freshwater wetlands 7. Which of the following is NOT a characteristic of the first the fish that left the water A. gills were modified to become lungs B. dorso-ventrally flattened C. supracleithrum eliminated D. none of the above 8. All adult mammals show the following chordate characteristic A. they possess a notochord B. they possess a pharynx with gill slits C. they possess a post-anal tail D. they possess a thyroid gland 9. Which of the following would be a natural, monophyletic grouping? A. lizards, snakes, turtles and crocodiles B. lizards, crocodiles, dinosaurs and birds C. lizards, snakes and turtles D. crocodiles, dinosaurs and birds 10. Adult tunicates lack both of the characteristics of which of the following pairs? A. pharynx with gill slits and post-anal tail B. post-anal tail and subpharyngeal gland C. dorsal, hollow nerve cord and notochord D. notochord and subpharyngeal gland
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