Answer:
Nucleoid
Explanation:
Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
Gastroileal reflex is triggered by food in the stomach, relaxes the ileocecal valve, and allows residue into the cecum.
The gastroileal reflex is triggered by the presence of food in the stomach as well as gastric peristalsis.
Gastroileal reflex brings about peristalsis in the ileum as well as the opening of the ileocecal valve, which in turn facilitates the emptying of the ileal constituents into the large intestine or colon.
The gastroileal reflex is one among the three extrinsic reflexes of the gastrointestinal tract. The other two include the gastrocolic reflex as well as the enterogastric reflex.
This type of gastrointestinal reflex is moderated by the vagus nerve and gastrin.
To learn more about peristalsis here
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The homo sapiens appeared after two million years ago.Some of them spread from Africa into Asia and Europe.
You should plot the point slightly above those of the chimpanzee and dog, where the blue star is in the graph to the right. They should conclude that a cheetah is an endotherm because its placement on the graph is in trend with the endotherms, not the ectotherms
Amino acids
Amino acids are the smaller building blocks that make up
proteins. There are more than fifty acids and each one of them is a little
different from the other. They are used in every cell of the body, specifically
to build proteins that the body needs in order to survive. Out of the over 50
amino acids in the body, only 20 are used to make the proteins, though. Nine of
which are called essential while the remaining 11 can be synthesized by an
adult body.