Biology Term1 Test 2024

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What is a climax community?

Back

A climax community is a stable and mature community of plants and animals that has reached a state of equilibrium with its environment.

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What is the independent variable in an experiment?

Back

The independent variable is the one factor that a scientist changes during an experiment, affecting the results.

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What is the habitat of an organism?

Back

The habitat is the natural environment in which a species or community of organisms lives.

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What type of competition occurs when one tree blocks sunlight to another tree of the same species?

Back

Intraspecific competition.

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What are pioneer species?

Back

Pioneer species are the first organisms to colonize a barren or disturbed area.

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What is a niche in ecology?

Back

A niche is the role or function of an organism or species within an ecosystem, including its habitat, resource use, and interactions with other organisms.

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Define ecosystem.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

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What is the difference between a population and a community?

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A population is a group of individuals of the same species living in a specific area, while a community is made up of different populations of various species in a given area.

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What is interspecific competition?

Back

Interspecific competition occurs when individuals of different species compete for the same resources.

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What is a controlled variable?

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A controlled variable is a factor in an experiment that is kept constant to ensure that the results are due to the independent variable.