cnidaria Flashcards
1
Q
What are organisms of phylum cnidaria also known as
A
coelenterata
2
Q
How is the body of phylum cnidaria
A
It is cylindrical or umbrella like
If cylindrical then known as polyp
Is umbrella like then known as Medusa
3
Q
Habitat of organisms of phylum cnidaria
A
Aquatic
Most are marine
Few are fresh water dwellers
4
Q
Symmetry of phylum cnidaria
A
Radial symmetry
5
Q
Coelom of phylum cnidaria
A
Acoelomate
6
Q
Germinal layers in phylum cnidaria
A
Diploblastic
7
Q
Special feature of phylum cnidaria
A
Cnidoblast bearing tentacles are present around the mouth
Tentacles are useful for capturing the prey
Cnidoblast inject the toxin in the body of prey
They are useful for protection too
8
Q
Examples of phylum cnidaria
A
Hydra
Aurelia (jelly fish)
Adamsia (sea anemone)
Corals
Physalia (Portuguese man of war)
