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Dvinal [7]
3 years ago
7

What is the cell membrane made of? Check all that apply.

Biology
2 answers:
hram777 [196]3 years ago
6 0
I’m not to sure about this
chase2 years ago
0 0

Proteins, lipids,carbohydrates

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Explanation:

c. Beginning with the return from the systemic circulation, blood enters the <em>right atrium. </em>

a. Blood enters the right ventricle from the right atrium through the right atrioventricular valve which is also known as the <em>tricuspid valve</em>

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b. From the left ventricle, the blood is pumped up to <em>aorta</em> the through the left semilunar valve which is sometimes referred to as the <em>aortic valve</em>.

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