Biology S1 Review '22

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What is competition between species?

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Competition between species occurs when two or more species vie for the same resources in an ecosystem, such as food, space, or light. An example is frogs and toads eating flies in a pond.

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What is biogeography?

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Biogeography is the study of how plants and animals are distributed around the world, examining the factors that influence their distribution.

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What is a dichotomous key?

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A dichotomous key is a tool used to identify organisms based on a series of choices that lead the user to the correct name of a given item. For example, hikers can use it to identify tree species.

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What is taxonomy?

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Taxonomy is the science of naming and classifying organisms into groups based on shared characteristics.

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What does 'fitness' mean in biological terms?

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In biology, 'fitness' refers to an organism's ability to survive and reproduce in its specific environment.

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What is an ecosystem?

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An ecosystem is a community of living organisms interacting with their physical environment, including both biotic (living) and abiotic (non-living) components.

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What is natural selection?

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Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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What is adaptation?

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Adaptation is a trait that helps an organism survive and reproduce in its environment, such as the sharp needles of a spruce tree that reduce water loss.

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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of different species.

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What is a food chain?

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A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.