Multiple Choice
In sponges, the ostium is
A) a pore in the external wall through which water is drawn for feeding.
B) the central cavity of the body.
C) the pore through which the water leaves the body.
D) the vacuole formed for food ingestion.
E) the structure for attachment to the surface.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: With the exception of cnidarians and nematodes,
Q3: Which animal does NOT belong to the
Q4: What gene family is thought to be
Q5: In Platyhelminths differ from cnidarian<br>A) since cnidarians
Q6: The skeleton of a sponge may be
Q7: The phylogenetic tree of animals shows that<br>A)
Q8: Which animal phylum is NOT a member
Q9: Which of the following organisms does NOT
Q10: An important feature of most corals (Class
Q11: Reproduction in flatworms occurs by<br>A) cross-fertilisation.<br>B) parthenogenesis.<br>C)