Moisture and concentration of oxygen
A. are parts of an organism's environment.
B. have no effect on the physiology of an organism.
C. are biological conditions that impact an organism's survival.
D. do not vary in the environment.
Answer:A
Moisture and concentration of oxygen
A. are parts of an organism's environment. B. have no effect on the physiology of an organism. C. are biological conditions that impact an organism's survival. D. do not vary in the environment.