Midterm Review - Unit 1: Ecology and Ecosystems (CP ENCI SCI)

The study of how humans affect other organisms and their environment is:

• Environmentalism

• Environmental science

• Ecology

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Ecology and environmentalism differ in that

• ecology is a science, environmentalism is a concern

• environmentalists formulate and test hypotheses

• there is no difference between ecology and environmentalism

When describing a system brewing coffee would be the:

• input

• output

• process

As cattle begin to run, panic increases. More panicked cattle will cause other cattle to run, creating a stampede. This demonstrates a:

• Negative feedback loop

• Positive feedback loop

Cynthia works in a hair salon for 25 years. At the end of her career, she is diagnosed with lung cancer. This is an example of:

• negative feedback

• positive feedback

• time delay

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An aquarium ecosystem is shown in the accompanying diagram. A community in this aquarium consist of the

• Fish and water

• Plants and gravel

• Fish and plants

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The cheetahs in Kenya and the cheetahs in Tanzania makeup separate:

• Species

• Communities

• Populations

The following chart lists three groups of factors relating to an ecosystem. Which group contains only abiotic factors?

• Group A

• Group B

• Group C

You will be conducting a study of the interactions of vegetation, animals, soil nutrients, and water levels in a saltmarsh. You are studying the saltmarsh ___________.

• Population

• Community

• Ecosystem

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The ecosystem service least likely to be performed by the insect family is:

• recycle nutrients

• pollination

• purifying water

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