Unique characteristics of echinoderms include all of the following EXCEPT
A) an endoskeleton of plates or ossicles.
B) marine,freshwater,and terrestrial species.
C) pedicellariae.
D) dermal brachiae.
E) a water vascular system.
Correct Answer:
Verified
Q11: The most active of all echinoderms are
Q12: The orientation of a sea star is
A)a
Q13: The calcareous plates found underneath the epidermis
Q14: The fossil record of echinoderms
A)is sparse with
Q15: Echinoderms are
A)mostly pelagic or free-swimming in open
Q17: Water enters the water vascular system of
Q18: Which of the following are considered "irregular"
Q19: The function of the papulae in the
Q20: Ecologically,sea stars are at what trophic level?
A)Producer
B)Herbivore
C)Top
Q21: The complex chewing apparatus found in many
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