Circulation of blood — task. Science TNSB Mentoring, Class 10 Crash course.

Tick the correct choice:

The X separates the right and left sides of the heart, preventing the mixing of oxygenated and deoxygenated blood. This wall is made up of Y.

Find X and Y.

X – Septum, Y – Cardiac muscles
X – Atrium, Y – Connective tissue
X – Valve, Y – Endothelium
X – Chamber, Y – Smooth muscles

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5. Circulation of blood

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