Biology 11 Chapter - 9
Diversity Among Animals - 14
1.
The medusae reproduce?
a) by budding
b) sexually
c) by fragmentation
d) asexually
2.
Which one of the following is Not a cnidarian?
a) jelly fish
b) obelia
c) sea fan
d) sycon
3.
The Red gorgonian and Red whip coral belong to the phylum?
a) cnidaria
b) platyhelminthes
c) arthropoda
d) porifera
4.
The units of cnidarian colonies are called as?
a) nematocystes
b) gammules
c) zooids
d) tentacles
5.
Which one of the following is a reproductive zooid?
a) all of these
b) polyps
c) hydroids
d) medusae
6.
The occurence of different types of zooids in the same organism is known as?
a) polymorphism
b) alternation of generation
c) budding
d) dimorphism
7.
Polymorphism is the charactristic of phylum?
a) cnidaria
b) annelida
c) nematoda
d) porifera
8.
Excretion in cnidaria takes place by means of?
a) lungs
b) diffusion
c) flame cells
d) kidneys
9.
Corals belong to the phylum?
a) porifera
b) arthropoda
c) nematoda
d) cnidaria
10.
Jellyfish is common at seashore in?
a) Queeta
b) Peshawar
c) Lahore
d) Karachi
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