Question

multiple - choice question what makes bacteria dangerous when they undergo natural selection? they can resist antibiotics and cause the very sick. they are adaptable and cannot be killed without a repeat use of antibiotics. they are unresponsive to vaccines and do not change over time so that you can defeat them with antibiotics.

Explanation:

Bacteria are dangerous when they undergo natural - selection because they can adapt and develop resistance to antibiotics. This makes it difficult to treat infections caused by them and can make people very sick.

Answer:

They can adapt and develop resistance to antibiotics which can make people very sick.