‘s these scientist ‘s A scientist observes that the leg bones of cats are similar to the bones in the


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A scientist observes that the leg bones of cats are similar to the bones in the wings of bats. The scientist concludes the two species share a common ancestor. Which describes why the scientist drew that conclusion?
1. developmental patterns
2. DNA
3. fossil evidence
4 .structural data
Bald eagles might lay up to five eggs at a time, but only one hatchling usually survives. Which feature of natural selection is this an example of?
1 .adaptation
2. genetic variation
3. overproduction
4. selection


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