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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Definitions:

Infants

Young children from birth to one year old who are entirely dependent on adults for care.

Objects

Material items that can be seen and touched, and are distinguishable from ideas or thoughts.

Piaget

A Swiss psychologist renowned for his theories on cognitive development in children, positing stages through which children's thinking evolves from simple to complex structures.

Object Permanence

The understanding that objects continue to exist even when they cannot be observed (seen, heard, touched, smelled, or sensed in any way).