The bones in the forelimbs of humans, dogs, cats, whales, and bats each include the humerus, radius, ulna, carpals, etc. The SIMILAR structure suggest these organisms share a common ancestor.

In a rock layer of undisturbed rocks where would you be able to find the oldest rocks, therefore the oldest fossils?

The type of rock that is best suited to preserving fossils are __.

During natural selection, it is not the individual that changes rather it is the ___ that changes over time.

In the fossil record, extinction is ___.

This type of rock is not good at preserving fossils because the lava is so hot that it destroys the remains of living things.

The residual bones of a whale's pelvis or snake leg bones are no longer needed and suggests these species evolved from organisms with legs.

The wings of an insect and a bird or the flippers of a whale and a shark may both be used in similar ways but they are structurally different suggesting they are not closely related.

The peppered moths and the pocket mice are similar because their populations both expereienced a mutation that created a dark variety that thrived in specific environments.

The kind of reproduction that results in diverse offspring.

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