A distinctive feature of phylum Porifera is
A) a gastrovascular cavity with a mouth only for digestion.
B) radial symmetry.
C) an internal cavity lined by flagellated cells.
D) a tubular body with a simple nervous system.
E) an exoskeleton of chitin.
Correct Answer:
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Q4: Which animal phylum is NOT a member
Q5: Animal phyla that show protostome development include
A)
Q6: Differences between protostomes and deuterostomes are first
Q7: With the exception of cnidarians and nematodes,
Q8: The main difference between eumetazoans and parazoans
Q10: Amoebocytes in sponges are described as totipotent
Q11: The skeleton of a sponge may be
Q12: Which animal does NOT belong to the
Q13: In cnidarians, the mouth is borne on
Q14: Radial symmetry is characteristic of animals that
A)
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