Multiple Choice
What is the name of the mesoderm-derived, calcium-stiffened structures that comprise the internal skeleton of echinoderms?
A) ampullae
B) ossicles
C) madreporites
D) radial canals
Correct Answer:
Verified
Correct Answer:
Verified
Q59: Match each group of organisms with its
Q60: Which lineage includes members called lancelets?<br>A) Cephalochordata<br>B)
Q61: Which phylum includes the lineages Polyplacophora, Gastropoda,
Q62: Match each group of organisms with its
Q63: Which lineage includes two species of coelacanths
Q65: Which phylum includes members that have bilaterally
Q66: Which subphylum includes spiders, ticks, mites, scorpions,
Q67: Which of the following describes the postembryonic
Q68: Which lineage includes living members that are
Q69: Which lineage includes living members that are