Charles darwin was the first individual to convince the scientific community of the
occurrence of biological evolution. he based his findings on observations which he then used to
make inferences regarding changes in populations of species. which of the following would be
an inference based on observations?
a. except for a few fluctuations, populations remain fairly stable.
b. since more individuals are produced than can be supported, there must be some type of struggle for survival.
c. natural resources are limited, but in a stable environment, they remain relatively constant.
d. no two individuals are exactly the same.