Answer:
d. Because those chemicals are easily made when CO2 reacts with water, forming H2CO3 (via carbonic anhydrase
The name come from the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass.
Answer: its the nervous system
Explanation:
B. the frogs are a limiting factor for the gnats
the frogs limit the reproduction of the gnats, and therefore with less frogs the gnat population can increase
