Becuase they were fully aquatic unlike tetrapods today
Transfer water hope this helps!
NO, the ocean is salty because it is the place where many of the salt from lakes and rivers leave off in. If this doesn't happen, then there will not be any fresh water, there will only be salty rivers, very salty rivers, not so salty rivers, or so salty to the point you can't even drink it salty water (lol)
hope this helps
It was proposed by a scientist named Charles Darwin.
Explanation:
1. Apple is to pear as Lemon is to lime
5.No is to yes as Disagree is to Approve
(Those are the only ones I can think of rn my brain is sort of fried and has been since August)