Answer:
"Survival of the fittest" is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success.
Explanation:
The first mutation is substitution and the second is deletion
Answer:
Explanation:
To become infected with HIV , infected blood, semen or vaginal secretions must enter your body. this can happen by have yk...
I think the answer in this is c because it shows how the scientist worked in feilds