17. After a severe drought struck Daphne Major, many of the plants that produced seeds were destroyed. Once
the finches ate all of the small seeds that were left from before, only big tough seeds were left. What do you
think happened to the population of finches on Daphne Major? Use the idea of natural selection to explain
your answer.

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.