Active cellular processes need energy in the form of ATP. Why do active processes need energy where passive processes do not? A.
To create a concentration gradient

B.
To move particles with the concentration gradient

C.
To move particles down the concentration gradient

D.
To move particles against the concentration gradient

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? the wings are analogous structures that evolved differently and do not have a similar internal structure. the wings are homologous structures that evolved differently and do not have a similar internal structure. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. wings of bats are vestigial structures, but the wing structures of birds are not vestigial.

The earth's polarity has switched many times through history as evidence by what wh the earth clorets he has switched many times throughout history as evidence by what

Construct an explanation about the function of mitosis for multicellular organisms