Answer:
The correct answer would be gene flow.
Explanation:
Gene flow is explained as the transfer of genes from one population to another so there is an increase in their frequency of genes.
It is also called migration. The addition or loss of people can affect the frequencies of the gene pool even if no other evolutionary mechanisms working at the time.
Thus, the correct answer would be gene flow.
Answer: HIV
Bats are well known to transmit rabies. A person can be infected with rabies, usually when it's bitten by a
rabid animal but can also be when the saliva of the animal touches the mouth, eyes, nose, or a fresh
wound.
Rabies can be found in bats all over the world but with Ebola it's found in bats in Africa and when infected someone, it can be fatal.
There are also reports that species of bats are a natural host of coronaviruses , a type of virus similar to the one that causes SARS outbreak
