Question

select all that apply
choose all that are included in the cardiovascular (not circulatory) system.

□ blood vessels
□ heart
□ bone marrow
□ blood

Explanation:

The cardiovascular system consists of the heart, blood vessels, and blood. Bone marrow is part of the hematopoietic system (involved in blood cell production but not a direct component of the cardiovascular system). So we identify the components that belong to the cardiovascular system.

Answer:

A. Blood vessels, B. Heart, D. Blood