In fetal life, the lungs are not expanded, so most of the blood from the right ventricle is shunted from the pulmonary artery to the aorta through the patent ductus arteriosus. With a few breaths the lungs expand, and blood flows from right ventricle to pulmonary artery into the lungs. Withdrawal of circulating prostaglandin from the mother plus bradykinins released from the expanding lung of the infant cause the ductus to close over a few minutes to hours. The closed ductus remains as the ligamentum arteriosum.
Answer that does not describe the structure of an atom: The electron clod is a small and compacted space around the nucleus.
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Answer: nitrogen and hydrogen
N2 +3 H2 ---> 2NH3
Explanation:
Wait and be patience for the medication, it could take some more time in certain cases
