ch. 33 deuterostome echinodermata Flashcards
1
Q
phylums of deuterostomes
A
cordata and echinodermata
2
Q
classes of echinodermata
A
- asteroidea
- ophiuroidea
- echinodea
- Crinoidea
- holothroidea
3
Q
ex. of asteroidea
A
sea star
4
Q
ex. of ophiurodiea
A
brittle star
5
Q
ex. of echinodea
A
sea urchins
6
Q
ex. of crinoidea
A
sea lillies
7
Q
holothroidea
A
sea cucumber
8
Q
phylum echinodermata characteristics
A
- modified radial symmetry
- cephalization absent
- endoskeleton covered with spines
- water vascular system
- no excretory organs
- complete digestive system
- autotomy
9
Q
symmetry of phylum echinodermata
A
- modified radial symmetry - 5 parts
- secondary - larvae are bilateral
10
Q
does echinodermata have a brain
A
no - has simple nervous system
11
Q
endoskeleton of echinodermata
A
covered with spines and pedicellariae
12
Q
water vascular system of echinodermata
A
tube feet function in movement, gas exchange, and feeding
13
Q
how do respiration and excretion occur in echinodermata?
A
by diffusion
14
Q
autotomy
A
intentionally detach body part that will later regenerate
15
Q
auto
A
self
