Answer: cellulose gives cell walls of plants their rigid structure
It helps burn of calories that contains bodie fat
I think the area is wait is there supposed to be a pic?
Answer:
drinking polluted waters can cause bacteria to intect the body, and get the person sick, as well as infecting a cut that the person might have, since any nick in the skin is a open source for bacteria, since the skin is the first line of defense against bad bacteria.
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a index helps you find ou the meaing of a word or phrase of a story or textbook. this will help you better understand the meaing of the story
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hope this helps:)