Don has a mutation in his genes. Neither of his parents have Don's mutation. Don's mutation is present in all of his cells. Where did this mutation first occur? a) in any of don's cells. the mutation then spread
b) we cannot know. more information needed
c) in the sperm or egg cells of his parents
d) in don's sperm cells. the mutation then spread

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Can yall plz me on this question im having a hard time think about it