Oc would be the answer to this question
The ductus arteriousus is a blood vessel that connects the pulmonary artery to the descending aorta. Otherwise known as the ductus Botalli, this structure pumps blood into the fetus' non-functioning lungs from the right ventricle. This blood vessel will close at birth and becomes the ligamentum arteriousum.
True, Methane is a greenhouse gas
The answer to your question is B.
Answer:
mass
Explanation:
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