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

For chemical defence against herbivores, Calotropis has :

A
cardiac glycosides
B
strychnine
C
toxic ricin
D
distasteful quinine
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

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
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

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

The historic Convention on Biological Diversity, ‘The Earth Summit’ was held in Rio de Janeiro in the year

A
1992
B
1986
C
2002
D
1985
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