1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?
A
Penguin is homoiothermic while the remaining three are poikilothermic.
B
Leech is a fresh water form while all others are marine.
C
Spongilla has special collared cells called choanocytes, not found in the remaining three. All arebilaterally symmetrical.
D
All are bilaterally symmetrical.
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
One of the free-living, anaerobic nitrogen-fixer is
A
Beijernickia
B
Rhodospirillum
C
Rhizobium
D
Azotobacter.
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups
A
eubacteria and archaea
B
cyanobacteria and diatoms
C
protists and mosses
D
liverworts and yeasts.
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Male and female gametophytes are independent and free-living in
A
mustard
B
castor
C
Pinus
D
Sphagnum.