Science, asked by brainer009, 7 months ago

1.The right and left atria are considered as A.lower thick-walled chambers B.upper thick-walled chambers C.lower thin-walled chambers D.upper thin-walled chambers

Answers

Answered by Anshrajput215
2

Answer:

B is right answer

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Explanation:

Answered by Muralidharan007
2

Answer:

Option d

Upper thin walled

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