Which of these is a piece of evidence supporting the theory of evolution? emus and ostriches exist in different geographical locations. rheas and emus exist in the same geographical location. all the galapagos finches exist on the same island. galapagos finches feed only on insects.

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.