The bones in the wings of a bat are the same as the bones found in the paws

of raccoon, though their function is quite different. The similarity is evidence

that the bat and the raccoon-

the bat and the racoon share a common ancestor.

Explanation:

what is described in this question are homologous structures, which indicate common ancestry. hope this helps!

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

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