Multiple Choice
Coiled masses of fecal material called __________ are deposited on the substrate at one of the openings of the burrow of an enteropneust.
A) castings
B) mucus
C) detritus
D) particulate matter
E) pseudofeces
Correct Answer:
Verified
Correct Answer:
Verified
Q7: Enteropneusta and Pterobranchia are classes of animals
Q8: Echinoderms and hemichordates are more closely related
Q9: The echinoderms that most closely resemble fossil
Q10: In sea stars,contraction of the _ force
Q11: The skeleton of sea urchins consists of
Q13: Sea cucumbers belong to the echinoderm class<br>A)Holothuroidea.<br>B)Crinoidea.<br>C)Asteroidea.<br>D)Ophiuroidea.<br>E)Concentricycloidea.
Q14: The characteristic larval stage of brittle stars
Q15: In the sea stars,a(n)_ groove runs along
Q16: Synchronous spawning by enteropneusts suggests the presence
Q17: The principal nitrogenous waste of sea stars