Why bacteria are both evil and friends to us give reason

bacteria can be bad an good for you there are some bacteria that can help an there other that can get you sick an sometime leads to death.The good bacteria would fight the bad an if the good bacteria win our body is not sick if we let the bad bacteria we can get sick.

Explanation:

hope it helps brainlist pls an np

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above