1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
What is a keystone species ?
A
A dominant species that constitutes a large proportion of the biomass and which affects many other species
B
A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the community's organization and survival
C
A common species that has plenty of biomass, yet has a fairly low impact on the community's organization
D
A rare species that has minimal impact on the biomass and on other species in the community
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The maximum growth rate occurs in :-
A
Exponential phase
B
Stationary phase
C
Senescent phase
D
Lag phase
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In which of the following pairs is the specific characteristic of a soil not correctly matched ?
A
Chernozems – Richest soil in the world
B
Laterite – Contains aluminium compound
C
Terra rossa – Most suitable for roses
D
Black soil – Rich in calcium carbonate
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In which one of the following habitats does the diurnal temperature of soil surface vary most ?
A
Grassland
B
Desert
C
Shrub land
D
Forest
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