Erosion should be the main cause in losing fossils
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:
Larger bone in “shin/calf” area
Metaphase leads to anaphase, during<span> which each chromosome's sister </span>chromatids separate<span> and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister </span>chromatids<span> together</span>during<span> prophase — causes this separation to occur.
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