Question

A. Fill in the blanks. 1. The _ system is a parallel circulatory system present in human beings.
2. RBCs have _ types of antigens.
3. People with the blood group _ have neither antigen.
4. People with the blood group _ are called universal recipients.
5. People lacking the rhesus factor are called_
6. The _ septum separates the two auricles. 7. The _ valve separates the left auricle and left ventricle.
8. In systemic circulation, arteries carry _ blood away from the heart.
9. The sinoatrial node is the primary _ of the heart.
10. The heart stops beating suddenly and blood stops flowing through the body in a _​

Answer 1

Answer:

In 1817, James Mill, a Scottish economist and political philosopher, published a massive three-volume work, A History of British India. In this he divided Indian history into three periods – Hindu, Muslim and British. This periodisation came to be widely accepted.

Answer 2

Answer:

Last one don't know

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