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option 3 in 1st one and option 4 in 2nd one I think
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?? I don't know what these means
Answer: DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
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what do you want to talk about?
When the ph freshwater becomes highly alkaline, it causes fish to die and damage to outer surface like grills, eyes and skin
