1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
Benthic organisms are affected most by :
A
Surface turbulence of water
B
Water-holding capacity of soil
C
Light reaching the forest floor
D
Sediment characteristics of aquatic ecosystems
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following is not a parasitic adaptation ?
A
Loss of digestive organs
B
Loss of unnecessary sense organs
C
Development of adhesive organs
D
Loss of reproductive capacity
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
The age pyramid with broad base indicates :
A
high percentage of young individuals
B
high percentage of old individuals
C
a stable population
D
low percentage of young individuals
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A biologist studied the population of rats in a barn, He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is :
A
15
B
05
C
10
D
zero
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