Biology Chapter 3

All life on Earth exists in

• An Ecosystem

• A Biome

• The Biosphere

• Ecology

Which term describes a group of different species that live together in a defined area?

• A Population

• A Community

• An Ecosystem

• A Biosphere

Primary producers are organisms that

• Rely on other organisms for their energy and food supply.

• Consume plant and animal remains and other dead matter.

• Use energy they take in from the environment to convert inorganic molecules into complex organic molecules.

• Obtain energy by eating only plants.

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Which of the following is a decomposer?

• A

• B

• C

• D

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Which of the following describes how ALL consumers get their energy?

• Directly from the sun.

• From eating primary producers

• From inorganic chemicals like hydrogen sulfide

• From eating organisms that are living or once living.

The series in which the large fish eats a small fish that has eaten algae is

• Food Web

• Food Chain

• Pyramid of Numbers

• Pyramid of Biomass

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The total amount of living tissue at each trophic level in an ecosystem can be shown in a(n)

• Energy Pyramid

• Pyramid of Numbers

• Biomass Pyramid

• Biogeochemical Cycle

Nutrients move through an ecosystem in

• Biogeochemical Cycles

• Water Cycles

• Energy Pyramids

• Ecological Pyramids

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Which biogeochemical cycle does NOT include a major path in which the substance cycles through the atmosphere?

• Water Cycle

• Carbon Cycle

• Nitrogen Cycle

• Phosphorus Cycle

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A group of individuals that belong to a single species and that live together in a defined area?

• Population

• Ecosystem

• Community

• Biome

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