Question

Please answer the question

Answer 1

YOUR ANSWER IS HERE.....,

1) right atrium contract.

2) tricuspid valve close.

3) right ventricle contracts.

4)semilunar valve open.

Answer 2

Answer:

Hey guys

1) right atrium contact

2) tricuspid value close

3) right ventricle contact

4) semilunar value open

Explanation:

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