I believe it should match as the following...
sight in whales -----> eyeballs in cavefish
balance in monkeys -----> tailbone in humans
attachment point for limbs in frogs -----> pelvis bone in whales
A)amino acid is the correct answer
Answer: On day 8 the Caudatum reached it's maximum capacity of 28.
Explanation:
It has been proved that on day 8 to day 16 Caudatum has not increased its numbers .