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Human Impact on the Environment
Part I: Launch the Coral Reefs 2 Biotic Factors simulation. Play around with
it for about 10 minutes to familiarize yourself with how it works. Then answer
the questions below.
1. What does the simulation model? How do the components of the
simulation model these ideas? Give an example to support your answer.
A coral reef is an ecosystem where different abiotic (i.e., water, sunlight,
temperature, salt, waves, etc.) and biotic (i.e., aquatic plants, shrimps,
fish, corals, etc.) factors interact together to maintain the homeostasis
of the system.
2. When you decrease the pH in the simulation, the ocean’s acidity increases.
What do you expect to happen over time to the population of the corals, algae,
and fish in the coral reef as the pH of the ocean decreases?
With decrease in pH of ocean water, the survival rate of corals, algae,
and fish in coral reef reduces.
3. Set up the simulation in the following manner. a) On the Data tab, check all
boxes except those of the red lionfish and the crown-of-thorns starfish. b)
Zoom out from the graph by clicking on the minus sign () on the right side of
the graph. Continue clicking the minus sign until the graph shows 100 years
on the x-axis. c) On the Conditions tab, set the storm severity to 20%, ocean
temperature to 27°C, and ocean pH to 7.6. d) Run the simulation. e) Take a
snapshot of your graph, and then copy and paste it into the space below.
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Human Impact on the Environment
4. Based on the results from Question 3, answer the questions below.
a) Did the results match your expectations? Use data from the table to
support your answer.
Yes my research did answer my question
b) What conclusion can you make about the relationship between the pH and
the biodiversity of the coral reef ecosystem in the simulation?
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Human Impact on the Environment
Lower pH value (more acidic) affects the amount of calcium carbonate in
the water of coral reefs. This has consequences on the coral skeletons,
because they are made of calcium carbonate. It can be a huge problem
(since coral reefs are a resource of food and tourism), it is going to be
harder for them to calcify or they could even dissolve.
c) How is the simulation limited in its ability to model how the ocean’s pH
affects biodiversity in this ecosystem?
The simulation limits the growth of coral reefs because its pH is low.
d) How would you revise the simulation so users can evaluate the role of
human activity in the pH of the ocean?
I would increase the temperature of the ocean and lower the percentage
of pH so that users see how the ocean is affected by human activity,
human activity causes the pollution of the air that causes CO2, which
leads to all that CO2 is absorbed by the seas thus increasing the amount
of acidity which brings as a consequence the increase in temperature
and the dissolution of coral reefs.
e) What variables would you add to or change in the simulation to accomplish
this?
Some variables that I had control over in the simulation were to add
mutations, edit genes, select factors such as wolves, food, environment
(artic or dessert), and control population or pedigree chart.
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Human Impact on the Environment
Part II: Read the text below, and then answer the questions. Corals, the basic
structures of coral reefs, are affected by the increasing acidity (decreasing pH)
of the oceans. When the ocean absorbs carbon dioxide, the carbon dioxide
reacts with water and other substances to form carbonic acid. This process
uses substances in the ocean that corals use to build their skeletons. So, the
more carbon dioxide there is in the ocean, the harder it is for corals to build
their skeletons. Ocean acidification can also destroy existing coral reefs.
1. Give two possible ways that negative human impact on the pH of Earth’s
oceans can be reduced.
By Lowering the carbon dioxide in the air, and reducing the plastics that
goes into the oceans.
2. Conduct research to learn more about your proposed solutions. Be sure to
look up information about cost, safety, reliability, and social or cultural
implications when applicable. What are the pros of each solution? What are
the cons of each solution?
To temporarily restrict fishing at the area would require government-
approved projects. There would be consequences that would be a dead
end in food resources of seafood from the river.
3. Which solution would be better to implement? Justify your answer
A solution that would be better to implement would be to reduce fishing.
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Human Impact on the Environment
4. What sources did you use?

Unformatted Attachment Preview

Human Impact on the Environment Part I: Launch the Coral Reefs 2 – Biotic Factors simulation. Play around with it for about 10 minutes to familiarize yourself with how it works. Then answer the questions below. 1. What does the simulation model? How do the components of the simulation model these ideas? Give an example to support your answer. A coral reef is an ecosystem where different abiotic (i.e., water, sunlight, temperature, salt, waves, etc.) and biotic (i.e., aquatic plants, shrimps, fish, corals, etc.) factors interact together to maintain the homeostasis of the system. 2. When you decrease the pH in the simulation, the ocean’s acidity increases. What do you expect to happen over time to the population of the corals, algae, and fish in the coral reef as the pH of the ocean decreases? With decrease in pH of ocean water, the survival rate of corals, algae, and fish in coral reef reduces. 3. Set up the simulation in the following manner. a) On the Data tab, check all boxes except those of the red lionfish and the crown-of-thorns starfish. b) Zoom out from the graph by clicking on the minus sign (–) on the right side of the graph. Continue clicking the minus sign until the graph shows 100 years on the x-axis. c) On the Conditions tab, set the storm severity to 20%, ocean temperature to 27°C, and ocean pH to 7.6. d) Run the simulation. e) Take a snapshot of your graph, and then copy and paste it into the space below. Human Impact on the Environment 4. Based on the results from Question 3, answer the questions below. a) Did the results match your expectations? Use data from the table to support your answer. Yes my research did answer my question b) What conclusion can you make about the relationship between the pH and the biodiversity of the coral reef ecosystem in the simulation? Human Impact on the Environment Lower pH value (more acidic) affects the amount of calcium carbonate in the water of coral reefs. This has consequences on the coral skeletons, because they are made of calcium carbonate. It can be a huge problem (since coral reefs are a resource of food and tourism), it is going to be harder for them to calcify or they could even dissolve. c) How is the simulation limited in its ability to model how the ocean’s pH affects biodiversity in this ecosystem? The simulation limits the growth of coral reefs because its pH is low. d) How would you revise the simulation so users can evaluate the role of human activity in the pH of the ocean? I would increase the temperature of the ocean and lower the percentage of pH so that users see how the ocean is affected by human activity, human activity causes the pollution of the air that causes CO2, which leads to all that CO2 is absorbed by the seas thus increasing the amount of acidity which brings as a consequence the increase in temperature and the dissolution of coral reefs. e) What variables would you add to or change in the simulation to accomplish this? Some variables that I had control over in the simulation were to add mutations, edit genes, select factors such as wolves, food, environment (artic or dessert), and control population or pedigree chart. Human Impact on the Environment Part II: Read the text below, and then answer the questions. Corals, the basic structures of coral reefs, are affected by the increasing acidity (decreasing pH) of the oceans. When the ocean absorbs carbon dioxide, the carbon dioxide reacts with water and other substances to form carbonic acid. This process uses substances in the ocean that corals use to build their skeletons. So, the more carbon dioxide there is in the ocean, the harder it is for corals to build their skeletons. Ocean acidification can also destroy existing coral reefs. 1. Give two possible ways that negative human impact on the pH of Earth’s oceans can be reduced. By Lowering the carbon dioxide in the air, and reducing the plastics that goes into the oceans. 2. Conduct research to learn more about your proposed solutions. Be sure to look up information about cost, safety, reliability, and social or cultural implications when applicable. What are the pros of each solution? What are the cons of each solution? To temporarily restrict fishing at the area would require governmentapproved projects. There would be consequences that would be a dead end in food resources of seafood from the river. 3. Which solution would be better to implement? Justify your answer A solution that would be better to implement would be to reduce fishing. Human Impact on the Environment 4. What sources did you use? Name: Description: ...
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