Question

Assertion:
There is no mixing of oxygenated and deoxygenated blood in the human heart.

Reason:
Valves are present in the heart which allows the movement of blood in one direction only.

A. a true, b true.
B. a true, b false.
C. a false, b true.
D. a false, b false.

2) a. Assertion : Heart beats or pumps out a stream of blood called a pulse.

b. Reason : pulse can be felt on the inside of our wrist.

A. a true, b true.
B. a true, b false.
C. a false, b true.
D. a false, b false.​

Answer 1

1) Answer is (A)

2) Answer is (C)

Explanation:

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Answer 2

Answer:

1-A(a true,b true); 2-A(a true,b true)