Ecology Review

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What is a primary consumer?

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A primary consumer is an organism that eats producers (plants) to obtain energy. Examples include herbivores like snails and rabbits.

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers. Examples include carnivores like snakes that eat mice.

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What is a decomposer?

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A decomposer is an organism that breaks down dead organic material, returning nutrients to the ecosystem. Examples include fungi and bacteria.

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What is the role of producers in an ecosystem?

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Producers are organisms that create their own food through photosynthesis, forming the base of the food web. Examples include plants and algae.

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What is a food web?

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A food web is a complex network of feeding relationships among organisms in an ecosystem, showing how energy and nutrients flow.

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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 an energy pyramid?

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An energy pyramid is a graphical representation of the energy available at each trophic level in an ecosystem, with producers at the base.

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What is a niche?

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

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What are abiotic factors?

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Abiotic factors are non-living components of an ecosystem that affect living organisms, such as temperature, water, and soil.

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What is a top predator?

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A top predator is an organism that is at the top of the food chain and has no natural predators. Examples include lions and great white sharks.