Biology, asked by anusharamavath71, 5 months ago

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Answers

Answered by palakchordiya123
0

Explanation:

The four statements below describe some of the events that occur during the flow of

blood through the heart By placing the numbers 1 to 4 in the boxes indicate the correct

sequence of these events starting immediately after deoxygenated blood has entered

the heart and ending as the blood is sent to the lungs

The right atrium contracts

The semilunar valves open

The right ventricle contracts

13

The tricuspid valve closes

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