Biology EOC Ecology

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

• Commensalism

• Mutualism

• Parasitism

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Lichens are close associations of fungi and algae. The fungi hold the water supply and the algae perform photosynthesis to manufacture carbohydrates for both organisms.

• mutualism

• commensalism

• parasitism

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When energy travels from one trophic level of an energy pyramid to the next, some energy is always lost as

• heat

• solid waste

• carbon dioxide

• oxygen

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What does every food chain start with? (Even if it's not drawn or written there!)

• producers

• sun

• consumer

• decomposers

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The nonliving aspects of an ecosystem.

• Abiotic factors

• Biotic factors

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The living portions of the ecosystem.

• Biotic factors

• Abiotic factors

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A graphic illustration that shows each trophic level and the amount of useable energy contained within.

• Food chain

• Food web

• Energy Pyramid

• All of these

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As you move upward, from level to level, in an energy pyramid, energy _____.

• increases

• decreases

• stays the same

• increases exponentially

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 plants that convert energy from the sun

• decomposer

• primary consumer

• secondary consumer

• producer

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What would happen if the population of zebras decreased?

• There would be less grass for other animals.

• Populations of lions & hyenas would decrease.

• Termites would have no food.

• Baboons would have more competition for food.

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