Assume that a single layer of phospholipids coat the water in a beaker. which part of the phospholipid molecule will face the air? a. the phosphate groups
b. the hydrocarbon tails
c. the phospholipids would dissolve and not form a membrane coat
d. both heads and tails as the molecules are amphipathic and will lie sideways

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls