Answer:
Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end.
Explanation:
Reproduction is a characteristic of all living systems; because no individual organism lives forever, reproduction is essential to the continuation of every species.
I believe that the answer is B.
Because our bodies work to fight off unknown substances like bacteria
The correct option is A.
An exponential growth is a type of growth whose rate becomes more rapid in relation to the total number that is available. When a specie has newly been introduced into a new area, they usually give birth rapidly and take over their new environment. If you check the options given above, you will see that it is only option A that have numbers that continuously increase. An exponential growth increase continuously. <span />
