Which of the following allows nutrients and other substances to be transported across the cell membrane? a. carbohydratesb. proteinc. fatsd. glucose

b. Proteins

Explanation:

Several transmembrane proteins serve as transport proteins and move charged, polar and large substances such as ions, amino acids, sugars through membranes. These are the carrier proteins and channel proteins. Each type of transport protein transports a specific type of substance. Carrier proteins bind the ion or molecule and undergo changes in shape. This change moves the molecule across the membrane. Channel proteins form pores through the membrane to allow transport of substances.

For example, aquaporins are transmembrane proteins that allow water to pass through membranes.

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

dgjnuuk

explanation:

is the dgjofgkg. huukkg u