asked 215k views
1 vote
When does the circulatory system work with the respiratory system?

a- during cellular respiration
b- during blood cell formation
c- during intestinal digestion
d- during a viral infection

asked
User Hangy
by
8.5k points

2 Answers

0 votes
B- during blood cell formation
answered
User Danra
by
8.5k points
2 votes
It is during breathing so cellular respiration
answered
User Alos
by
8.1k points
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