Evolution

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What is a phylogenetic tree?

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A diagram that represents evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

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What are homologous structures?

Back

Similar structures in different species that indicate a common ancestry.

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Who evolves, individuals or populations?

Back

Populations evolve, not individuals.

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What is natural selection?

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The process by which organisms with favorable traits are more likely to survive and reproduce, leading to changes in the population over time.

Front

What is the primary goal of all species in terms of evolution?

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To survive and reproduce.

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What is the significance of heritable traits in evolution?

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Heritable traits are passed from parents to offspring and are essential for natural selection to occur.

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What is the difference between natural selection and artificial selection?

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Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring, while artificial selection is the intentional breeding of organisms by humans for desired traits.

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What role do mutations play in evolution?

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Mutations introduce new genetic variations into a population, which can lead to new traits that may be subject to natural selection.

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What is adaptation in the context of evolution?

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A trait that increases an organism's fitness, allowing it to survive and reproduce in its environment.

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How does genetic drift affect evolution?

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Genetic drift is a mechanism of evolution that refers to random changes in allele frequencies in a population, which can lead to significant changes over time.