Multiple Choice
The common name acorn worm is derived from the appearance of the __________ of these worms.
A) collar
B) proboscis
C) hepatic cecum
D) trunk
E) tunic
Correct Answer:
Verified
Correct Answer:
Verified
Q17: The principal nitrogenous waste of sea stars
Q18: Embryologically,the echinoderm water vascular system originates as
Q19: The water vascular system of echinoderms carries
Q20: In Asteroidea the _ system consists of
Q21: All of the following are true of
Q23: Sea daisies have a thin membrane,the _,that
Q24: Sea cucumbers respire using<br>A)large feathery oral tentacles.<br>B)oral
Q25: The name Echinodermata translates as<br>A)spiny skin.<br>B)spiny skeleton.<br>C)spiny
Q26: Most modern echinoderms assume a mouth-down feeding
Q27: Attached crinoids are called<br>A)sea daisies.<br>B)sea lilies.<br>C)sea urchins.<br>D)basket