Whitetip reef sharks spend most of the day lying on the ocean floor. While remaining still, these sharks pump water across their gills. The movement of water across their gills is necessary for

Average annual precipitation and are the two major features that define the biomes on earth.

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve