1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
When a fresh-water protozoan possessing a contractile vacuole, is placed in a glass containing marrine water, the vacuole will
A
increase in number
B
disappear
C
increase in size
D
decrease in size
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Presence of gills in the tadpole of frog indicates that
A
fish were amphibious in the past
B
fish evolved from frog-like ancestors
C
frog will have gills in future
D
frog evolved from gilled ancestors.
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the Phylum
A
Annelida
B
Mollusca
C
Cnidaria
D
Echinodermata.
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
One of the following is a very unique feature of the mammalian body
A
homeothermy
B
presence of diaphragm
C
four chambered heart
D
rib cage.

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