1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Peat moss is used as a packing material for sending flowers and live plants to distant places because
A
it serves as a disinfectant
B
it is easily available
C
it is hygroscopic
D
it reduces transpiration.
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Conifers differ from grasses in the
A
formation of endosperm before fertilization
B
production of seeds from ovules
C
lack of xylem tracheids
D
absence of pollen tubes.
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Top-shaped multiciliate male gametes and the nature seed which bears only one embryo with two cotyledons, are characterised features of
A
cycads
B
conifers
C
polypetalous angiosperms
D
gamopetalous angiosperms
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Auxospores and hormogonia are formed, respectively, by
A
some diatoms and several cyanobacteria
B
some cyanobacteria and many diatoms
C
several cyanobacteria and several diatoms
D
several diatoms and a few cyanobacteria.
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