I would say B). Hope this helps!
B looks like the best to me
C. DNA Polymerase matches adenine to thymine and cytosine to guanine. Two identical double helixes are produced.
Brain energy requirement, metabolism and neurotransmitter turnover consume 20 % of the available oxygen and glucose in the body.
<span>Even though, the brain is only about 2% of the body weight, it consumes about 20% of the body's energy. It is the main consumer of glucose-derived energy. When the mental strain increases, the brain's demand for energy in the form of oxygen and glucose is higher.</span>
Answer:
Explanation:
a sugar, a phosphate group, and a nitrogenous base.