8.2 Human Impacts on Aquatic Ecosystems

Last updated 12 months ago

25 questions

1

Library

8.2 Human Impacts on Aquatic Ecosystems

Last updated 12 months ago

25 questions

1

Use the PPT to fill in the blank

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Describe TWO ecosystem services/benefits of coral reefs.

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

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Use the PPT to fill in the blanks

GO HERE for questions 11-24
Begin playing and click the pond in the mid-Atlantic region.

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Explain why the pond is not a good location to sample water from.

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Explain your answer from #12

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Now click on the mid-Atlantic stream.

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Where is the best place to sample from in the stream?

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Explain why you think this is the best place to sample in the stream.

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What do you use to measure a sample of water's physical properties?

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Identify three parameters you are measuring in regards to a sample of water's physical properties.

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How deep does the probe need to be in the water (click on the probe to submerge it)?

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After you take three samples, record your average measurements of the sample of water's physical properties in the data table.

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Did average temperature, turbidity, and pH vary significantly between the different locations?

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Explain #21

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Explain why for #23.

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For the location you chose in #23, where do you suspect this pollution comes from? Why?

Use the PPT to fill in the blank

Describe TWO ecosystem services/benefits of coral reefs.

Use the PPT to fill in the blanks

GO HERE for questions 11-24
Begin playing and click the pond in the mid-Atlantic region.

Explain why the pond is not a good location to sample water from.

Would pollutants in runoff be an example of point source or nonpoint source pollution?

Point source pollution

Nonpoint source pollution

Explain your answer from #12

Scientists are interested in measuring the effect of pollution on the water quality of a stream. They will use observations of various bottom-dwelling insects, or macroinvertebrates, collected in the stream as indicators of the physical, chemical, and biological conditions within the stream. Which of the following best describes why macroinvertebrate sampling can be used to assess the overall health of a stream?

Macroinvertebrates live in an aquatic ecosystem for a long enough time to show the chronic effects of pollutants, and many tend to remain in the same area throughout their life span.

Macroinvertebrates migrate long distances to feed or reproduce, and they have a low tolerance to pollutants.

Macroinvertebrates are top predators, so they are often used in determining whether toxins will bioaccumulate or biomagnify in an aquatic environment.

Macroinvertebrates can be collected to evaluate the effect of various test parameters such as dissolved oxygen, nitrites, and pH at the time that the sample was taken.

Now click on the mid-Atlantic stream.

Where is the best place to sample from in the stream?

Explain why you think this is the best place to sample in the stream.

What do you use to measure a sample of water's physical properties?

Identify three parameters you are measuring in regards to a sample of water's physical properties.

How deep does the probe need to be in the water (click on the probe to submerge it)?

After you take three samples, record your average measurements of the sample of water's physical properties in the data table.

Did average temperature, turbidity, and pH vary significantly between the different locations?

Explain #21

Which location would you argue is the most polluted?

Mid-Alantic Wastewater Treatment

Southwest Pond

Mid-Alantic Stream

Southwest Canal

Explain why for #23.

For the location you chose in #23, where do you suspect this pollution comes from? Why?

Would pollutants in runoff be an example of point source or nonpoint source pollution?

Point source pollution

Nonpoint source pollution

Scientists are interested in measuring the effect of pollution on the water quality of a stream. They will use observations of various bottom-dwelling insects, or macroinvertebrates, collected in the stream as indicators of the physical, chemical, and biological conditions within the stream. Which of the following best describes why macroinvertebrate sampling can be used to assess the overall health of a stream?

Macroinvertebrates live in an aquatic ecosystem for a long enough time to show the chronic effects of pollutants, and many tend to remain in the same area throughout their life span.

Macroinvertebrates migrate long distances to feed or reproduce, and they have a low tolerance to pollutants.

Macroinvertebrates are top predators, so they are often used in determining whether toxins will bioaccumulate or biomagnify in an aquatic environment.

Macroinvertebrates can be collected to evaluate the effect of various test parameters such as dissolved oxygen, nitrites, and pH at the time that the sample was taken.

Which location would you argue is the most polluted?

Mid-Alantic Wastewater Treatment

Southwest Pond

Mid-Alantic Stream

Southwest Canal