During fermentation, how do changes to a molecule of pyruvic acid contribute to the formation of ATP?

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

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.

Which of the following human activities resulted in the growth of the north american deer population?