What is a homologous structure?
Evidence for Evolution

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Biology
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A homologous structure is an anatomical feature in different species that is similar in structure but may serve different functions, indicating a common ancestry.
2.
FLASHCARD QUESTION
Front
What is a vestigial structure?
Back
A vestigial structure is a body part that has lost its original function through evolution, such as the hind leg bones in whales.
3.
FLASHCARD QUESTION
Front
What is an analogous structure?
Back
An analogous structure is a body part that serves a similar function in different species but is not similar in structure, indicating convergent evolution.
4.
FLASHCARD QUESTION
Front
What is the fossil record?
Back
The fossil record is the collection of all known fossils, which provides evidence of the history of life on Earth and shows how species have changed over time.
5.
FLASHCARD QUESTION
Front
What is natural selection?
Back
Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring, leading to evolutionary change.
6.
FLASHCARD QUESTION
Front
What evidence supports the theory of evolution?
Back
Evidence for evolution includes the fossil record, homologous structures, vestigial structures, and genetic similarities among species.
7.
FLASHCARD QUESTION
Front
What is the significance of embryonic development in evolution?
Back
Embryonic development shows similarities among different species, suggesting a common ancestry and providing evidence for evolutionary relationships.
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