Question

which of the following systems carries necessary compounds like oxygen and nutrients throughout the body?
a cardiovascular
b respiratory
c lymphatic
d nervous
e urinary

Explanation:

The cardiovascular system, which includes the heart and blood vessels, circulates blood that carries oxygen and nutrients to cells throughout the body. The respiratory system is mainly for gas - exchange, the lymphatic system is related to immunity and fluid balance, the nervous system transmits signals, and the urinary system filters waste.

Answer:

A. cardiovascular