Question

How does a baby's respiration and circulation change when the baby is born?
A. The circulatory system pumps blood for the first time.
B. The baby now breathes oxygen instead of carbon dioxide.
C. The circulatory and respiratory systems must work on their own.
D. The baby's blood has oxygen for the first time.

Answer 1

Answer:

i think its c

Explanation:

because when its in the mothers stomach it uses her oxygen and thats why they alwqays say "her/his/their first breath"