Answer:
"Reproduction refers to the production of offspring by organized bodies. The offspring is produced as a new individual organism from the parent(s). It is one of the fundamental attributes of a living thing."
-Biologyonline.com
The correct answer is - A. Death rate.
We get the fertility rate from the birth rate and the death rate. More specifically, from the number of the children that are born in a given time frame (usually a year) we minus the number of the people that have died in the same time frame, so the difference between them gives us the fertility rate.
The fertility rate can be positive (in the difference is a positive number) and negative (if the difference is negative number).
Enzymes are organic catalysts which aid in facilitating chemical reactions in the body. When functioned properly homeostasis is maintained.
The ph level of blood is supposed to be 7.4, so her body will make he blood more basic.