Where is most blood found at rest and how does its distribution change during hemorrhaging or vigorous exercise by the actions of the vasomotor center of the medulla oblongata or ans?

The correct answer is - 65% of total blood found in the venous system , and it can constrict during intense exercise or hemorrhage to keep the volume in arteries and capillaries near-normal level.

Explanation:

The venous system consists of 65% of the total blood of the body. The venous system transports the blood throughout the body and can be found the maximum part of the blood in this system.

The distribution of the blood can be change at the time of intense exercise or hemorrhage by constricting the veins to keep in capillaries and arteries to the near-normal level.

Thus, the correct answer is -65% of total blood found in the venous system , and it can constrict during intense exercise or hemorrhage to keep the volume in arteries and capillaries near-normal level.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

cells spend most of their time in interphase