19. when a catalyst is missing from a
chemical reaction, what happens to the
reaction?
o a. it can't occur because the rate of
reaction isn't regulated.
o b. it speeds up too much and the
reaction happens at the wrong time.
o c. it slows down the reaction and makes
essential biological functions take too long.
o d. there's a missing chemical that gets
used in the reaction.

Scientists studied reproduction in the new zealand mud snail to answer the question, “are there benefits to reproducing sexually or asexually? ” which of these hypotheses would least likely aid the scientists as they worked to answer the question? sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation. asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring. sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation. asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social