Characteristic features of Echinodermata Flashcards
1
Q
Marine, freshwater or terrestrial
A
Marine
2
Q
Metameric body or unsegmented
A
Unsegmented
3
Q
Bilateral- or radial symmetry
A
Radial (pentradial)
4
Q
Unique system called
A
Water-vascular system
5
Q
Locomotion by
A
tube feet and/or radial arms
6
Q
Skeleton
A
Endoskeleton
7
Q
Nervous system
A
Perioral ring and radial nerves
8
Q
Brain or no brain
A
No brain
9
Q
Ability of autotomy?
A
Yes
10
Q
Sexes
A
Usually separate
11
Q
Larvae radial or bilateral
A
Bilateral
12
Q
Excretory system
A
No
13
Q
Respiration by
A
papulae, tube feet
14
Q
Coelom or no coelom
A
Coelom
