Environmental Science Final Exam Review

The picture shows a reef environment. The stingray resting on the bottom of the reef represents

• a community.

• a population

• an organism

• an ecosystem

All of life on Earth exists in

• a single ecosystem

• a single biome

• the biosphere

• the hydrosphere

What term describes all of the members of a species of mockingbirds that live in the same area of Tampa?

• a biome

• a population

• a community

• an ecosystem

Which of the following statements is most likely correct?

• The amount of energy is identical in each level of the pyramid.

• The amount of energy increases at each successive level from D to A.

• The total amount of energy at level D is less than the total amount of energy at level B.

• The total amount of energy needed to sustain the pyramid enters the ecosystem at level C.

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A student is investigating the population size of rabbits in a woodland ecosystem. She researches the known population of rabbits over 125 years and creates a graph representing the rabbit population with a solid line and the ecosystem's carrying capacity with a dotted line. Based on the information in the graph, what conclusion can the student draw about the time period between 1800 and 1835?

• The rabbit population had many limiting factors and the ecosystem was beyond its carrying capacity.

• The rabbit population had few limiting factors and the ecosystem was beyond its carrying capacity.

• The rabbit population had many limiting factors and the ecosystem had not yet reached its carrying capacity.

• The rabbit population had few limiting factors and the ecosystem had not yet reached its carrying capacity.

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Which of the following refers to a population reaching a size that can no longer be supported by available resources in the surrounding environment?

• exponential growth

• survivorship

• environmental resistance

• carrying capacity

How do nutrients, such as carbon and water, move through an ecosystem?

• in biogeochemical cycles

• in ecological pyramids

• in energy pyramids

• in food webs

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The picture that represents a community is

• W, a group of one type of organism interacting in an environment.

• X, many types of organisms interacting with their nonliving environment.

• Y, a single lion resting by itself and not interacting.

• Z, a group of zebras and wildebeests interacting.

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Which picture represents an organism?

• W

• X

• Y

• Z

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Which picture represents an ecosystem?

• W

• X

• Y

• Z

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