<h3><u>Answer and Explanation</u>;</h3>
- Purines: Heterocyclic rings are synthesized one atom at a time, first atom attached to ribose phosphate (source is PRPP) and then all the other atoms are added .
- Pyrimidines: Common intermediate, orotate, synthesized first, then orotate is attached to ribose phosphate (source is PRPP or 5-Phosphoribosyl-1-pyrophosphate).
The leaves of the plant compared to the plants around it are bigger because they are being token care of and watered and fed while the others take care of them selves also they are different types of plants :)
An isometric exercise is a form of exercise involving the static contraction of a muscle without any visible movement in the angle of the joint.
