Question

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

Answer 1

Answer: Your answer would be anti

Step-by-step explanation:

This is because anti mean to stop or to prevent (antibiotic)

Answer 2

The prefix that changes the meaning of bacterial from "relating to or caused by bacteria" to "preventing bacteria" is "pro-" to "anti-". Relating or caused by bacteria is "probiotic" whereas for preventing bacteria, it is "antibiotic". Hope this answers your question. Have a nice day!