Biology, asked by SwastikaSarkar, 11 months ago

please do it.. it's very urgent ​

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Answered by Anonymous
1

Answer:

The upper chamber is called an atrium (or auricle), and the lower chamber is called a ventricle. The two atria act as receiving chambers for blood entering the heart; the more muscular ventricles pump the blood out of the heart.

Hope it will be helpful :)

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