Biology 11 Chapter - 9
Diversity Among Animals - 2
1.
The digestive system which have two openings, one for ingestion and the other for egestion is known as?
a) tube like
b) vestigial
c) rudimentary
d) sac like
2.
The digestive system of planaria?
a) is vestigial
b) contains a single opening
c) is rudimentary
d) contains two openings
3.
Digestive system which contains a single opening both for ingestion and egestion is known as?
a) rudimentary
b) vestigial
c) tubular
d) sac like
4.
Excretory system is absent in?
a) mammals
b) nematodes
c) flatworms
d) sponges
5.
The excretory organs in the form of branching tubes are present in?
a) sponges
b) cnidarians
c) flatworms
d) nematodes
6.
No definite nervous system is present in?
a) arthropodes
b) nematodes
c) cnidarians
d) mammals
7.
Which one of the following animal groups have a definite respiratory system?
a) flatworms
b) sponges
c) cnidarians
d) arthropodes
8.
Hydroskeleton is the charactristic of?
a) b and d are correct
b) arthropodes
c) annelides
d) worms
9.
Spicules are?
a) respiratory structures
b) skeletal structures
c) reproductive structures
d) locomotory structures
10.
Spicules are the structures found in?
a) arthropodes
b) annelides
c) flatworms
d) sponges
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