a) asymmetry
b) radial
c) bilateral
d) spherical
2007-07-16 14:28:05 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
from Wikipedia:
Echinoderms evolved from animals with bilateral symmetry; although echinoderms themselves posses radial symmetry
Are you asking us your test questions?
2007-07-16 14:37:25 · answer #1 · answered by hwinnum 7 · 2⤊ 0⤋
The answer is b) radial, though that is not really the complete answer. Echinoderms exhibit pentamerously radial symmetry, in that there are only five lines on which the organism could be cut to produce mirror images. See the web site below.
2007-07-16 23:06:07 · answer #2 · answered by kt 7 · 1⤊ 0⤋
Echidnoderms, like starfish, all have 5-part radial symmetry, so your answer would be (b)
2007-07-16 21:44:25 · answer #3 · answered by clayh3 2 · 1⤊ 0⤋
Your teacher wants you to answer
B
2007-07-16 21:59:32 · answer #4 · answered by Anonymous · 3⤊ 1⤋
its either a or c. i think it's a but not 100% sure
2007-07-16 21:37:54 · answer #5 · answered by Kyle 3 · 0⤊ 2⤋