I need help! Only have 15 minutes left!
Which factors affect the type of cloud that will be formed? Select three choices.

altitude
temperature
color of clouds
size of ice pellets
whether water condenses as liquid or ice

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.