Which of the following changes would lead to an increase in surface-area-to-volume ratios?A.) decreasing the projections of the choanocytes of sponges on the outer surface of the bodyB.) increasing the number of layers in the chloroplasts of plantsC.) thickening of the body of earthwormsD.) reducing the branching of the mesoderm tissues of sponges

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

1. is geographic distribution

2 is increasing complexity

3 is transitional forms

i think the answer is a.keratin is the pigment responsible for skin color.