Look at the food chain illustrated here. Frogs react very quickly to changes in their habitat. What would happen to the food chain if the frogs began to die off?
A) The number of insects and grasses will get larger.
B) The numbers of living things at each level will get smaller.
C) The insect numbers would get larger; the grass numbers would get smaller.
D) The number of snakes will get much larger; the insect number will get smaller.

the answer is C

Explanation:

Because the frogs would not eat the insects and the insects will eat the grass

cell regulation is conducted by special proteins.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.