It is heat, convection cells in the asthenosphere cause the movement of the crust.
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.
Explanation:
number number 539 34 is divisible by which of the following numbers
HEYA!!!!
The answer to your question is
Two Indian Cow Breeds are ;
Hallikar
Hariana Cattle
Foreign Breeds:-
Brown Swiss
Hope it helps you.
:)
Answer:
option B
Explanation:
On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
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