Answer:
move to a cold, moist, and unstable weathered environment. :)
Explanation:
Answer:
Prokaryotes.
Explanation:
Most of the Eukaryotes most likely to evolve from the Prokaryotes. Prokaryotes are basically unicellular organisms that lack internal membrane-bound structures. So, they do not carry nucleus and generally have a single chromosome. Most of them have a cell wall outside the plasma membrane, which is a thin layer of lipid that completely surrounds the cell. Prokaryotes reproduce by binary fission method.
Gastric secretion begins during the cephalic stage and ends during the intestinal phase. The regulation of stomach secretion is divided into three phases which are cephalic, gastric and intestinal. The cephalic stage occurs when the food is been eaten. Gastric secretions are stimulated by three chemicals which are acetylcholine, histamine and gastrin. The gastric phase occurs in the stomach while the intestinal phase occurs in the small intestines.<span />
