19. How do the skeletal and circulatory systems relate to each other?
a. bone marrow produces blood
b. the heart is made of cardiac muscle tissues
c. the heart is held in place in the chest by ligaments
d. the blood brings carbon dioxide and glucose to the cells of the bones
Answers & Comments
Answer:
A. Bone Marrows produces blood
Explanation:
Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain internal stability and balance, otherwise known as homeostasis