i think its b ? am aint sure
The reason scientists believe this is that there was basically no oxygen in the atmosphere at this time, which meant that cells needed to be anaerobic to survive,<span> going around the problem of no oxygen in the atmosphere.
Hope this helps.</span>
Answer: the parasympathetic system controls body rest and digestion response, and the autonomic nervous system controls cardiovascular, and excretory systems.
Explanation:
Both are used for energy to the body.
Answer:
It's kind of short u can say that.hope it will help good day
Explanation:
Animals obtain nitrogen primarily from their diet. Carnivorous animals obtain their needed nitrogen from protein in the meat they eat while herbivorous animals obtain nitrogen through plant materials that has a high protein or amino acid content such as leguminous plants.
