1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Which is the National Aquatic Animal of India ?
A
River dolphin
B
Sea-horse
C
Gangetic shark
D
Blue whale
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is the most important cause of animals and plants being driven to extinction ?
A
Co-extinctions
B
Over-exploitation
C
Alien species invasion
D
Habitat loss and fragmentation
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
When does the growth rate of a population following the logistic model equal zero?
The logistic model is given as dN/dt = rN(1-N/K)
A
When death rate is greater than birth rate.
B
When N/K equals zero.
C
When N/K is exactly one.
D
When N nears the carrying capacity of the habitat.
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following is a characteristic feature of cropland ecosystem ?
A
Absence of weeds
B
Absence of soil organisms
C
Ecological succession
D
Least genetic diversity