Answer:
B. processes to make them take longer than a human's lifetime
Your answer would be M. Deciduous forest. Hope this helped :]
There are two classes of membrane transport proteins—carriers<span> and </span>channels<span>. Both form continuous </span>protein<span> pathways across the lipid bilayer. Whereas transport by </span>carriers<span> can be either active or passive, solute flow through </span>channel proteins<span> is always passive.</span>
Overgrazing is a cause of desertification, so c.
