Question

which selection from the article is best illustrated by the graphic in the section \classification and structure of blood vessels\?
a they are divided into two separate systems that begin and end at the heart.
b the lower two are called ventricles, while the upper two are known as atriums.
c they transport blood from the right ventricle to the lungs and then back to the left atrium.
d based on their purpose, blood vessels are divided into arteries, capillaries and veins.

Explanation:

The question asks which statement about blood vessels is best - illustrated by a given graphic in a section about blood vessel classification and structure. Option A refers to the two - part circulatory system related to the heart, Option B is about the chambers of the heart, Option C is about pulmonary circulation, and Option D is about the classification of blood vessels by function. Without seeing the graphic, we assume it is related to the classification of blood vessels by function as the section title is about classification and structure.

Answer:

D. Based on their purpose, blood vessels are divided into arteries, capillaries and veins.