Their skin is thin so they're prone to drying out and they cannot hold moisture in their bodies(Waterproof skin)
He was the first to provide an explanation of evolution supported by evidence.
Answer:
population density I hope this helps
Answer:
rotational period of Earth
Explanation:
the time in which Earth rotates exactly 360 degrees around its axis, measured relative to the stars
One of them are nucleus for sure, just don’t know the rest. Sorry