Chapter 3 Biology (Miller and Levine)

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What is a population in biology?

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A group of individuals belonging to a single species that live together in a defined area.

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What is the nitrogen cycle?

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The process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

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Which organism receives the least amount of energy from the producer?

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The owl, as it is at the top of the food chain and receives less energy compared to primary consumers.

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What are primary producers?

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Organisms, such as algae and plants, that produce energy through photosynthesis and form the base of the food chain.

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What is ecology?

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The study of the interactions of organisms with each other and with their environment.

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Define ecosystem.

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A community of living organisms and their interactions with their abiotic environment.

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What is a food chain?

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A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

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What role do decomposers play in an ecosystem?

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Decomposers break down dead organic material, recycling nutrients back into the ecosystem.

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What is a biome?

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A large geographical biotic unit, a major community of plants and animals with similar life forms and environmental conditions.

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What is the difference between a community and a population?

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A community consists of multiple populations of different species living together, while a population is a group of individuals of the same species.