Answer:
Option-A
Explanation:
Hunger is the sensation felt by the advanced organisms which show that the organisms now have to eat to survive. The feeling of hunger is generated when the vagal nerves from the gastrointestinal tract to the CNS.
The feeling of hunger is not psychological but is a physiological process that is controlled by the brain and the main neuron nucleus of the brain which controls the appetite of humans lies n the hypothalamus. The hypothalamus controls the opioid receptors and neurotransmitter which controls the appetite.
Thus, Option-A is the correct answer.
Answer:
Xylem carries water and minerals from the roots to the leaves. Whereas, phloem carries the food prepared by the leaves to different parts of the plant.
Explanation:
Answer:
elliptical, spiral and irregular and elliptical are the oldest
Explanation:
Answer:
Turkey allegedly causes drowsiness because it is packed with a nutrient called tryptophan. Tryptophan is one of 20 naturally occurring amino acids—the building blocks of proteins. Because the body is unable to manufacture tryptophan on its own, it must be obtained from food protein.
