Answer:
A macromolecule is a very large molecule, such as protein, commonly created by the polymerization of smaller subunits (monomers). ... The most common macromolecules in biochemistry are biopolymers (nucleic acids, proteins, carbohydrates and lipids) and large non-polymeric molecules (such as lipids and macrocycles).
Explanation:
I think the Belt of the inter-tropical convergence zone is the general part of the general circulation found on the doldrums. This is a belt of low pressure which circles the Earth generally near the equator where the trade winds of the Northern and southern Hemispheres converge. Mainly characterized by convective activity which generates often vigorous thunderstorms over large areas.
Answer:
D. Control the blood flow into the capillary bed
Explanation:
The degree of filling of the capillary bed and level of arterial pressure within the vascular system is determined mainly by the degree of tonus (firmness) in the smooth muscle of the arterial wall. Arterioles have relatively narrow lumina, thick muscular wall and precapillary sphincter.
