Aphospholipid is a common type of lipid molecule that is hydrophilic at one end and hydrophobic at the other. explain how this structural characteristic of a phospholipid contributes to the formation of plasma membranes.

Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.

During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

What pattern of migration do whales follow?