Your answer should be options 4, 5, & 6.. correct me if I’m wrong !
Scar tissue is made of a protein called collagen
The sum of all the genes in a population is referred to as the gene pool.
Our muscles are attached to our skeleton to help us move. If we had no skeleton then our muscles would hang limply, making it harder for us to move.
D.) Fossils. Fossils are skeletons of creatures that lived in the past.
