The scientist you're looking for is an anthropologist.
Answer:
If you are referring to a cellular organelle than I would say lysosomes because, they do just that, they digest intracellular waste.
Im pretty sure behavioral since isolation is kind of a trap thing so i guess it affects your behavior
30) is B bec it goin from a low to high concentration every time that happens it requiers ATP.
31)B bec think of a enzyme as a key and a lock only one key will work with one lock and not others. So you see B and the black shape on top of it fits perfectly with. B . Another shape would not. So if it was a different shape the enzyme would not recognize it. The key would not fit the lock.
32) is A it pointing arrows out of the cell so everthing need to go out cell A has more insde then out so think ATP as a force pushing it out. And B there more in then out so it can move out easily:
