asked 139k views
0 votes
The cardiovascular system is made up of what two systems:

a) Circulatory system and respiratory system

b) Digestive system and Endocrine system

c) Nervous system and circulatory system

d) Muscular system and endocrine system

1 Answer

5 votes
A because respiratory = lungs and circulatory = heart.
answered
User Hadi Mostafapour
by
7.6k points
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