Question

read the passage and look at the graphic. then answer the question. the human heart the heart is one of the most important muscles in the body. it beats over 115,000 times and pumps about 2,000 gallons of blood every day. the heart is roughly the size of a fist in most adults. exercise and eating right are necessary for keeping the heart healthy. the heart has four chambers, or areas, and the valves act like doors that only allow blood to flow in one direction. blood enters the heart through veins, and it leaves the heart through arteries. chambers of the human heart how do the text and the graphic together help you to understand the topic? a they help explain how much 2,000 gallons is. b they help explain how large the adult heart is. c they help explain the different parts of a heart. d they help explain how to exercise and eat right.

Explanation:

The text mentions the heart has four chambers. The graphic titled "Chambers of the Human Heart" likely shows the different parts (chambers) of the heart. Together, they help explain the different parts of a heart.

Answer:

C. They help explain the different parts of a heart.