well fungi gets alot of its energy from dead things so it would have to be b algae since c and d are just microscopic organisms
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>
Friction creates heat between two objects rubbing together, and slows the moving object down.
