Answer:
C. photosphere, convective zone, radiative zone, and core
The nervous system in a frog controls the activities of the organs of the body. It also would regulate the internal environment in one's body. All the organs which are also the same parts of nervous system of a vertebrate are present in a frog. The brain,spinal chord,the sympathetic and para sympathetic nerves,cranial nerves,spinal nerves,cranial nuclei and ganglia.
Biology is the study of life so a Biologist would study biology: the study of life and living things.
I believe the answer is C
