The behavior of harbor seals is timed with the change of the seasons. In the summer, males will compete with each other for territory and access to females. In the late summer / early autumn, breeding occurs. Then, birth is given to the pups in late winter. Relate the living conditions during each season to these behaviors. Why have the seals evolved this kind of timing?

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

a- all cells come from pre-existing cells

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.