A, b, c, or d? :3

c

Explanation:

The space allows for the predators to be evenly spaced out.

b

Explanation:

the lack of disease will allow for the new species to grow with little limitations, enabling the populations on these new islands to grow and change.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

: )