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1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?
A
There is no relationship between Gross primary productivity and Net primary productivity
B
Gross primary productivity is always more than net primary productivity
C
Gross primary productivity is always less than net primary productivity
D
Gross primary productivity and Net primary productivity are one and same
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Match the trophic levels with their correct species examples in grassland ecosystem.

(A) Fourth trophic level   (i) Crow
(B) Second trophic level  (ii) Vulture
(C) First trophic level      (iii) Rabbit
(D) Third trophic level    (iv) Grass

Select the correct option
A
(A) $$ \to $$ (iv), (B) $$ \to $$ (iii), (C) $$ \to $$ (ii), (D) $$ \to $$ (i)
B
(A) $$ \to $$ (ii), (B) $$ \to $$ (iii), (C) $$ \to $$ (iv), (D) $$ \to $$ (i)
C
(A) $$ \to $$ (i), (B) $$ \to $$ (ii), (C) $$ \to $$ (iii), (D) $$ \to $$ (iv)
D
(A) $$ \to $$ (iii), (B) $$ \to $$ (ii), (C) $$ \to $$ (i), (D) $$ \to $$ (iv)
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is the most important cause for animals and plants being driven to extinction?
A
Economic exploitation
B
Alien species invasion
C
Habitat loss and fragmentation
D
Drought and floods
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following ecological pyramids is generally inverted?
A
Pyramid of biomass in a forest
B
Pyramid of biomass in a sea
C
Pyramid of numbers in grassland
D
Pyramid of energy
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