Answer:
Less
Explanation:
Hormones are chemical messengers produced by glands called Endocrine glands into the bloodstream in order to effect a change in a particular region of the body. Endocrine glands are those organs that secrete specific hormones e.g pancreas, pituitary gland etc.
When hormone concentrations are low in the blood, the gland will produce more amount of the hormone while the glands will produce lesser amount of hormone when there is a high concentration of hormones.
Ingestion of foreign substances by macrophages and yeast cells by an amoeba is known as <u>Phagocytosis</u>
<u>Explanation:</u>
Phagocytosis that is the name given to the process of ingestion of foreign particles by macrophages. In human body the white blood cells does this function. Macrophages is found in all the tissues. Any foreign particle entering the body is engulfed by this process hence protecting the organisms.
Once a bacteria enters the body it is at once detected and recognised as the foreign particle. Then it is attached to the phagocyte. Then it is engulfed into a vesicle called phagosome. Then this is killed by the process of phagocytosis.
Well the cell membrane accepts nonpolar molecules, and O2 is nonpolar.
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