Which statement about adult sponges is false?
A) Their bodies are aggregations of one cell type.
B) They do not have a mouth.
C) Their bodies are usually asymmetrical.
D) Their apparently simple structure is deceptive.Sponge bodies are aggregates of many cell types.Even though they lack mouths and other features of more complex animals,their apparent simplicity is deceptive.
Correct Answer:
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Q15: Specialized archaeocytes that secrete spicules are
A)collencytes.
B)sclerocytes.
C)choanocytes.
D)spongocytes.
E)lophocytes.Archaeocytes may
Q16: A sponge feeds by
A)using a net and
Q17: The simplest of canal systems is found
Q18: The order in which a drop of
Q19: Concerning producing larger organisms without cellular differentiation,
A)nature
Q21: Which of the following statements about sponges
Q22: If a sponge is fragmented and cells
Q23: Out of all metazoans,members of _ have
Q24: The unique feature of sponge development in
Q25: The demosponges
A)constitute only a small number of
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