cnideria Flashcards
1
Q
a fresh water cnidarian
A
hydra
2
Q
polyp example
A
hydra , adamsia
3
Q
Medusa
A
aurelia
4
Q
colonial cnidarian
A
physalia
5
Q
what are corals?
A
certain anthozoans and sometimes hydrozoans have calcareous of horny exoskeleton… the exoskeleton is also commonly called coral
6
Q
layers in cnidaria
A
epidermis, mesoglea, gastrodermis
7
Q
mesoglea contains which the of cells
A
ameboidal cells which are derived from ectoderm
8
Q
medusa is thick in 1.
& thin in 2.
A
- medusa
2. polyp
9
Q
why are jellyfishes called so?
A
in scyphozoa there is a well developed mesoglea
10
Q
fluid filled membeanous capsule
A
nematocyst
11
Q
coelenttron function
A
digestion, circulation
12
Q
mouth in jelly
A
surrounded by four oral arms
13
Q
mouth in polyp
A
conicular hypostome
