Water enters the water vascular system of a sea star through a porous plate on the aboral surface called the
A) aristotle's lantern.
B) pedicellariae.
C) madreporite or sieve plate.
D) ossicles.
E) ambulacrum.
Correct Answer:
Verified
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
Q16: Unique characteristics of echinoderms include all 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
Q22: A sea star feeds by absorbing food
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