Answer:
The tropical rainforest is a hot moist biome where it rains every day year month etc, There is only a small amount of sunlight and rainfall that these plants receive. They usually adapt to their home environments! :)
Explanation:
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.
IT'S D becuse none of the other awser choses make sense so ya
Answer:
Explanation:
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