Answer:
Like DNA, RNA polymers are make up of chains of nucleotides *. These nucleotides have three parts: 1) a five carbon ribose sugar, 2) a phosphate molecule and 3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil.
Explanation:
ribose + phosphate group + uracil
<span>Cardiac muscle must function without the need for Oxygen control.</span>
The answer is A because the electromagnetic spectrum is the thing that makes it visible
1 and 2
(every organism is genetically unique)
(provides variety of offspring)