Refer to the accompanying figure. The structure labeled as 7 is called the:a

superior vena cava.
b. aorta.


c. pulmonary veins.
d. right atrium.
e. right ventricle.


b

Biology & Microbiology

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A flagellated cell involved in bringing water into the spongocoel of sponges is called a(n):

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Explain the pressure flow theory. What will be an ideal response?

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