D, because skin tans to help us stand being in the sun without getting burned.
An example of physiological adaption is being able to digest milk. Before, humans were not able to digest milk before we developed enzymes that now make us have the ability to do so, thus allowing us another food source.
Answer:
waxing and waning crescent
Explanation:
Answer:
A would be the correct answer I'm sure
Explanation:
Have a nice day
The ability of water to hold more heat than land keeps the temperature on Earth on a moderate level.