Phylum -Coelenterates Flashcards
1
Q
Coelenterates live in which type of water?
A
Marine forms
2
Q
Movement of coelenterates?
A
Sessile/free swimming
3
Q
Coelenterates are also known as?
A
Cnidaria
4
Q
Cnidaria name is derived from?
A
Cnidoblasts or cnidocytes
5
Q
Cnidoblasts or cnidocytes are present on?
A
Tentacles and the body
6
Q
Cnidoblasts are used For
A
Anchorage
Defence
Capture of prey
7
Q
Mouth is present on?
A
Hypostome
8
Q
Digestion in coelenterates is
A
Both intracellular and extracellular
9
Q
Corals skeleton is made of
A
Calcium carbonate
10
Q
basic body form of coelenterates are?
A
Polyp
Medusa
11
Q
Movement of polyp is
A
Sessile
12
Q
Polyp example?
A
Hydra,adamsia
13
Q
Medusa is
A
Free swimming and umbrella shaped
14
Q
Medusa example
A
Aurelia or jellyfish
15
Q
What is metagenesis?
A
Cnidarians which exist in both polyp and Medusa forms exhibit alternation of generation
