It supports it by saying that there was once only one mammal but then it reproduced and since different places have different climates they adapted or evolved to the climate changing their form and shape.
The asterioid belt is the answer
The ocean since erosion gets minerials from one place to another the ocean is the reason of the formation since the ocean is the only thing that could form its because of the waves
Muscles.
your tissue is attached to a dermis which is basically your muscle and bone so muscles is the answer
12. D
13. B
14 . C
I hope I helped you. I don't know if I was helpful.