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) Pedicellariae
E) Ambulacrum.

Question

Quizplus · Accepted Answer

The madreporite, also known as the sieve plate, is a porous plate on the aboral (upper) surface of a sea star through which water enters its water vascular system. This plate acts as a filter that regulates the entry of water into the system, preventing debris and organisms from entering. The other choices, including Aristotle's lantern, pedicellariae, and ambulacrum, are structures found in the water vascular system but are not responsible for allowing water into the system.

Water Enters the Water Vascular System of a Sea Star