PLEASE HURRY Some natural disasters such as___ help forest
communities by allowing some trees
to release their seeds, by clearing
away deadwood, and by
encouraging new growth.

i am positive it is c. condensing but i may be wrong

yes we can.   a lady urinates from her urethra.

it marks things for degradation via the proteasome. it alters there celluar location.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.