Multiple Choice
Chitin occurs in several kingdoms and numerous animal phyla,but its greatest adaptive expression is seen in the:
A) annelid tube worm cases.
B) tunicate notocord.
C) echinoderm water vascular system.
D) arthropod exoskeleton.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q9: Many of the organ systems observed in
Q10: The specifics of metamorphosis vary among the
Q11: Cnidarians have a gastrovascular cavity rather than
Q12: Relationships among the animals having body cavities
Q13: For the insects that undergo complete metamorphosis,the
Q15: The similarity in the cell-adhesion proteins seen
Q16: Rather than mandibles that can be used
Q17: The head,thorax,and abdomen of the insect body
Q18: Gastropods make extensive use of the radula;
Q19: The evolution of the lung was a