Why do photosynthetic organisms that live less than 25 feet below the surface of the ocean do not need phycoerythrin to survive? Provide reasoning that explains this claim.

Apopulation has 1000 individuals. over a period of 1 year, 500 newindividuals are born. which equation shows how to calculate the birthrate ofthis population? a. 500 - 1000 = 0.5b. 1000 x 0.5 = 500c. 1000 - 500 = 2d. 1000 + 500 = 1500

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary