Answer:
Small and tube shaped, water enters the sponge through dermal pores and flows into the atrium. Choanocyte flagella create the current to expel it through a single osculum. Note that water enters the sponge through a modified cell known as a porocyte.
Explanation:
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I believe the answer is B
<span>I think it would be A.) Anemia, reducing the delivery of oxygen to the brain </span>