Most tropical storms which could become hurricanes form over the ocean near the equator. which statement to explain the formation of these weather systems? the prevailing wind is west to east in the northern hemisphere. there is more cool air near the equator. the tropical zone is located near the equator. warm air is able to hold more moisture than cool air.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.