Explain the changes in the whales skeletons during the transition in habitat according to the theory of natural selection. Will mark brainliest.

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:

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.