Question

1
which of these provides evidence from developmental biology of a shared evolutionary history?
a. the dna sequences of the cytochrome c genes in chimpanzees and spider monkeys are over 90% identical.
b. the skeletal structures of a leg of a horse and a flipper of a whale are very similar.
c. both lobsters and frogs go through metamorphosis as a process in their life cycle.
d. both snakes and dogs have pelvic bones even though they are vestigial structures in the snake.

Explanation:

• Option A is evidence from molecular biology, not developmental biology.
• Option B is evidence from comparative anatomy, not developmental biology.
• Option C refers to metamorphosis, a developmental process shared by two distantly related organisms, which is evidence from developmental biology for shared evolutionary history.
• Option D is evidence from vestigial structures (comparative anatomy), not developmental biology.

Answer:

C. Both lobsters and frogs go through metamorphosis as a process in their life cycle.