Answer:
Legs are better for walking, tails and fins are better for swimming. If the earlier kinds of whales swam a lot, then eventually, their skeleton would change to adapt to swimming. In general, the skeleton would change for any living things so they can live easier and more efficiently.
(make sure you paraphrase it!!)
Answer:
Legs are better for things such as walking, while it’s the oppostite for fins and tails. Those are better used for swimming. Early whales didn’t have tails and fins, so their skeletons adapted into fins and tails so they could move around better in the water since that is where they spent most of their time. In conclusion, skeletons generally adapt to a form that best suits the animal.
Explanation:
