<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).
Answer:
I think the answer for your question is the letter c
Answer:
D) an open watershed.
Explanation:
A watershed is defined as an area of land where all the surface water drains into the same place, whether it's a creek, a stream, a river or an ocean. ... An open watershed eventually drains into the ocean, whereas water in a closed watershed can escape only by evaporating or seeping into the earth.
Answer:
maintain homeostasis
Explanation:
Lizards are poikilothermic organisms, it means that their body temperature varies over the course of the day. There are poikilothermic organisms including lizards that bask in the sun during the morning and evening hours, and thus they can increase the body temperature