Plants produce oxygen this oxygen gas which is important part of our air is gas that plants and animals must have in order to stay alive when people breeze it's the auction that we take out of the air into our cells and blood is there taking into the alveoli and this is where gas exchange takes place all the o2 available for living organisms come from plants
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The digestive system excretes a solid waste and the excretory system excretes a liquid waste.
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Meiosis produces "Four Daughter cells"
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Yes. Some mammals may have less hair/fur, but all mammals do. It is a defining characteristic of a mammal.
