Ms. Brandon's Evolution Scientists

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What are vestigial organs?

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Organs that once had a function but now have no purpose due to natural selection.

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What does the endosymbiotic theory propose?

Back

Eukaryotic cells evolved by engulfing mitochondria and chloroplasts, which were once independent organisms.

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What evidence supports the endosymbiotic theory?

Back

Chloroplasts and mitochondria each have their own set of DNA, which is different from the DNA found in the nucleus.

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Who published the idea of natural selection in 'Origin of Species'?

Back

Charles Darwin.

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What was Jean Baptiste Lamarck's theory of evolution?

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He proposed that organisms acquire traits throughout their lifetime and pass those traits to their offspring.

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What is organic evolution?

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The gradual evolution of all living things over time to form new organisms.

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What are homologous organs?

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Organs that have a similar structure but may serve different functions in different species, indicating a common ancestor.

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What are analogous organs?

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Organs that serve similar functions in different species but do not share a common structural origin.

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What is natural selection?

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The process by which organisms better adapted to their environment tend to survive and produce more offspring.

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What is the significance of DNA in evolution?

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DNA carries genetic information that can mutate and be passed on, driving evolution through variation.