Answers

2014-08-23T16:15:38+08:00
Helps us to digest things in our body. they can fight when we have sick.
Lactobacillus is a good example on it because this is a gram-postive bacteria that helps us to clean or digest in our inside body. ex. yakult
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2014-08-24T12:55:36+08:00
In general, these bacteria serves as a decomposers.
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