Question

Which prefix changes the meaning of bacterial from "relating to or caused by bacteria" to "preventing bacteria"?

over-

anti-

auto-

extra-

Answer 1

`\huge{\boxed{\text{anti-}}}`

The prefix anti- means “against”. Preventing bacteria is basically the same as being against bacteria, so the
`\boxed{\text{anti-}}` prefix can be added to make the word “antibacterial”.