Sponges Feed Differently Than Comb Jellies Because a Sponge Feeds

question 18

Multiple Choice

Sponges feed differently than comb jellies because a sponge feeds by

• A)acting as a net in a current that sweeps food particles into its central cavity and digests them externally.
• B)squeezing the spongocoel cavity and sucking debris in and out through the osculum.
• C)the beating of collar cells' flagellae,which form a current; the current brings food particles which are engulfed and digested by collar cells.
• D)the beating collar cells form a current from osculum to pores; the food is engulfed by amoebocytes in the central cavity of the sponge.

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