Evolution and Ecology (EOC Review)

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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. It is a key mechanism of evolution.

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What is the ultimate source of energy for all life on Earth?

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The Sun is the ultimate source of energy for all life on Earth, providing the energy necessary for photosynthesis and sustaining food chains.

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What does 'Change over time' refer to in biology?

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Change over time refers to Evolution, which is the process through which species of organisms undergo changes over generations.

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What is a Trophic Level?

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A Trophic Level is the position an organism occupies in a food chain, which is determined by its feeding relationships.

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What is a Secondary Consumer?

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A Secondary Consumer is an organism that eats primary consumers; they are typically carnivores or omnivores.

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What is Extinction?

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Extinction is the end of an organism or a group of organisms, resulting in the loss of biodiversity.

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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.

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What is Speciation?

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Speciation is the evolutionary process by which populations evolve to become distinct species.

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What is Selective Breeding?

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Selective Breeding is the process by which humans breed plants and animals for particular genetic traits.

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What is a Food Chain?

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