A population of cockroaches was sprayed with an insecticide. Some cockroaches survived and produced a population of cockroaches that was resistant to this spray. What can BEST be inferred from this example?
a
species will adapt no matter what the environment
b
Individuals with favorable variations survive and reproduce
c
environment has no effect on the survival of an organism
d
Insecticides cause mutations that are passed on to the next generation
b
Individuals with favorable variations survive and reproduce