1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

In 'rivet popper hypothesis', Paul Ehrlich compared the rivets in an airplane to :

A
species within a genus
B
genetic diversity
C
ecosystem
D
genera within a family
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

For chemical defence against herbivores, Calotropis has :

A
cardiac glycosides
B
strychnine
C
toxic ricin
D
distasteful quinine
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

Which of the following is/are cause(s) of biodiversity losses ?

A
Over-exploitation, habitat loss and fragmentation.
B
Climate change only
C
Over-Exploitation only
D
Habitat loss and fragmentation only
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1

Among ‘The Evil Quartet’, which one is considered the most important cause driving extinction of species?

A
Over exploitation for economic gain
B
Alien species invasions
C
Co-extinctions
D
Habitat loss and fragmentation
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