Mystery #4Tier 2-3microbes / health
How do your good microbes help keep you healthy?
Your helpful microbes don't only digest food; they also help defend you from the harmful kind. But microbes have no teeth or weapons. So how do the good ones protect you?
Your guess
What's your hunch about how your friendly microbes help keep harmful ones from making you ill?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.