The following questions are based on the observation that several dozen different proteins comprise the prokaryotic flagellum and its attachment to the prokaryotic cell, producing a highly complex structure.
-An explanation for the evolution of insect wings suggests that wings began as lateral extensions of the body that were used as heat dissipaters for thermoregulation. When they had become sufficiently large, these extensions became useful for gliding through the air, and selection later refined them as flight-producing wings. If this hypothesis is correct, insect wings could best be described as

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The explanation suggests that insect wings began as lateral extensions of the body that were originally adapted for thermoregulation, but were later exapted for gliding through the air and were refined by selection into flight-producing wings. Therefore, insect wings can best be described as exaptations, which are traits that evolved in one context and later became useful in another context through the process of natural selection.

The Following Questions Are Based on the Observation That Several