Unformatted text preview: 4. Does pentaradiate symmetry exist for all stages of development? NO Explain: the larvae are bilaterally symmetrical 5. (4 points) Define each of the following: a. Madreporite plate - single structure on the aboral side of Echinoderms used to bring water into the water-vascular system. b. Dermal branchiae - part of the water vascular system, these tender bulbs project through the endoskeleton of the echinoderms to provide a respiratory function. c. Dermal endoskeleton - system of calcareous plates and spines, often fused into an investing armor d. Ambulacral - from the latin ambulare – to walk, refers to the grooves and spines on the oral side of the echinoderm associated with locomotion....
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- Spring '08
- Deuterostome, ZOOLOGY LAB LAB, ______KEY_______________ SECTION ______, pentaradiate symmetry, pentaradiate symmetry exist