Multiple Choice
In sponges, spicules are ____.
A) fibrous skeletal proteins
B) specialized digestive cells
C) complicated pore openings and passageways
D) needlelike skeletal structures made up of silica or calcium carbonate
E) feeding cells with a flagellum surrounded by a collar
Correct Answer:
Verified
Correct Answer:
Verified
Q5: Chitin-reinforced bristles that protrude outward from the
Q6: Members of the _ lineage, commonly called
Q7: Match each of the groups of organisms
Q8: How does embryonic cleavage differ in protostomes
Q9: Found mostly in freshwater, members of the
Q11: Most members of the _ Cnidarian lineage,
Q12: Match each of the groups of organisms
Q13: In deuterostomes, early embryos undergo _ cleavage.<br>A)
Q14: Which animal taxon is named for the
Q15: Which phylum is a member of the