Is the Larvae the baby animal that looks totally different from the adult animal.

There is a distinct juvenile form many animals undergo before metamorphosis into adults. The larva's appearance is generally very different from the adult form including different unique structures and organs that do not occur in the adult form. So, yes the Larvae baby is very different from the adult animal.

Explanation:

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it