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Biology, 21.06.2019 22:30
Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials
Answers: 2
Biology, 22.06.2019 01:00
All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time
Answers: 1
Biology, 22.06.2019 05:00
The chemical form of energy that is useable by the cell to do work
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Biology, 22.06.2019 06:00
Why does bubbling occur when vinegar mixed with baking soda
Answers: 1
Hormones are proteins uses as
-chemical receptors
-chemical messengers
-sugar...
-chemical receptors
-chemical messengers
-sugar...
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