I got you all you have to do is search it up lol
Answer:
C. Genetic differences between individuals and hormone levels
Explanation:
Examples of biological factors that influence individuals include the likes brain, immune system, nervous system, and genetics.
Also, the physiology of humans is affected by the biological factors the systemic reaction of the body system such as hormones.
Hence, in this case, Examples of biological influences on physiology are the "Genetic differences between individuals and hormone levels."
I believe the answer is D) Carbon!
They also use calcium!
Endocrine system of the body.