sticklebacks are small fish that live in both marine and freshwater environments. there are two alleles at the eda gene: m and f. genotypes mm and mf both have bony armor plating, while genotype ff has low bony armor. what is the relative fitness of eda genotype ff in cranby lake

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.