Question

components of organ systems
blood is a component of which of the following organ system?
skeletal system
endocrine system
nervous system
bones
cardiovascular system

Explanation:

The cardiovascular system, also known as the circulatory system, consists of the heart and blood vessels. Blood is circulated throughout the body by the heart via blood - vessels, making it a key component of the cardiovascular system. The skeletal system is made up of bones and related tissues, the endocrine system is about glands that secrete hormones, and the nervous system is for transmitting nerve impulses.

Answer:

E. Cardiovascular system