I think this is because the molecules in the rock are so small. The rock is also a solid.
The nervous system and the integumentary system<span />
<span>Estrogen is involved in a feedback mechanism associated with the follicular phase of menstruation. </span>
Answer: B (GTP serves as the energy input for AMP synthesis from IMP)
Explanation:
In the de novo synthesis of purine nucleotide, IMP represents a branch point for purine biosynthesis. IMP can be converted to either AMP or GMP.
The formation of AMP from IMP requires GTP; similarly formation of GMP requires ATP. The conversion of IMP to either AMP or GMP is highly regulated – AMP and GMP inhibits their own formation by feedback inhibition of adenlyosuccinate synthetase and IMP dehydrogenase.
<span>Genetic variation will increase because of a new habitat and food source.</span>
