I think it is from the Paleozoic era
Hope this helps
The density of salt water is greater than the density of fresh water
<span>a foot or more in length, and each cell contains hundreds of nuclei</span>
I strongly think it's c mainly because it;s the only one that talks about everyone being the same and not evolving like they should.
Mechanical digestions is usually associated with the mouth. You mechanically chew the food and saliva breaks it down. Chemical digestion occurs in the stomach where stomach acid breaks it down.
