Phosphorus plays an important role within the structures of the body. which of the following structures is phosphorus found in?
a. bones
b. cell membranes
c. dna
d. all of the above

The best answer is D.

Phosphorous is an essential mineral . It is found in all body cells with most of it (85%)  in bones and teeth. Combined with calcium, phosphorous found in bones provides structure and strength.

Phosphorous is an essential structural component of cell membranes where it is part of the phospholipid bilayer and in nucleic acids DNA and RNA where it is a structural part of the building blocks of the nucleic acids.

It is primarily used for growth and repair of body cells and tissues and is also found in many enzymes and hormones as a structural component.

Explanation:

the answer would be 3

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion