What type of evidence for the theory of common descent would include the presence of goose bumps in humans?
A) vestigial structures
B) homologous structures
C) shared developmental pathways
D) DNA similarity

Question

Quizplus · Accepted Answer

Goose bumps are a vestigial structure in humans that serve no known purpose. They are believed to be a remnant of our evolutionary past when our ancestors would puff up their fur for warmth or to intimidate predators. The presence of this non-functional structure in humans supports the theory of common descent, as it suggests that we share a common ancestry with other animals that also have fur or feathers.

What Type of Evidence for the Theory of Common Descent