Lesson 3: Circulatory and Respiratory Systems

Question 0

Define blood.

Answer 0

the fluid that carries gases, nutrients, and wastes around the body and that is made of platelets, white blood cells, red blood cells and plasma

Question 1

Define cardiovascular system.

Answer 1

A collection of organs that transport blood throughout the body; organs in this system include the heart, the arteries, and the veins.