Living Environment Ecology

Many different species of organisms interacting in a particular environment are an example of a

• biome

• population

• biosphere

• community

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Rabbits feed on insects near trees while other animals feed on insects located on the leaves near the middle of the trees. This tells us that the different feeding locations indicates that they have different

• Ecosystems

• Methods of reproduction

• Methods of selective breeding

• niches

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Which group would most likely be represented in a food chain?

• Biotic factors

• Abiotic factors

• Inorganic compounds

• Small resources

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The biotic and abiotic factors interacting with each other in a pond form is known as

• a population

• a community

• an ecosystem

• a food web

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Decomposers are necessary in a food chain because they

• manufacture food by photosynthesis

• return nutrients to the ecosystem

• absorb energy from the sun

• produce organic nutrients

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Which is true of most producer organisms?

• They are parasites

• They contain chlorophyll

• They are eaten by carnivores

• They liberate nitrogen

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How do we know when a population has reached its carrying capacity?

• The fish come to the top of the bowl looking for food

• No more members of the population can occupy the given space

• The leaves begin to drop off the tree

• Decomposers are visible

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The lowest layer of a food web would have

• carnivores

• ecosystems

• autotrophs

• saprophytes

When two organisms benefit from their relationship together we know this symbiotic relationship exists

• parasitism

• commensalism

• mutualism

• saprophytism

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As you drive down the highway, you may see crows feeding on dead animals. As a result of this nutritional pattern, crows may be classified as

• scavengers

• predators

• herbivores

• producers

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