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

Which one of the following statements is NOT correct?

A
Algal blooms caused by excess of organic matter in water improve water quality and promote fisheries
B
Water hyacinth grows abundantly in eutrophic water bodies and leads to an imbalance in the ecosystem dynamics of the water body
C
The amount of some toxic substances of industrial waste water increases in the organisms at successive trophic levels
D
The micro-organisms involved in biodegradation of organic matter in a sewage polluted water body consume a lot of oxygen causing the death of aquatic organisms
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II:

List I
(Interaction)
List II
(Species A and B)
(A) Mutualism (I) +(A), 0(B)
(B) Commensalism (II) $$-$$(A), 0(B)
(C) Amensalism (III) +(A), $$-$$(B)
(D) Parasitism (IV) +(A), +(B)

Choose the correct answer from the options given below:

A
A-IV, B-I, C-II, D-III
B
A-IV, B-III, C-I, D-II
C
A-III, B-I, C-IV, D-II
D
A-IV, B-II, C-I, D-III
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

All successions irrespective of the habitat proceed to which type of climax community?

A
Edaphic
B
Xeric
C
Mesic
D
Hydrophytic
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

The pioneer species in a hydrarch succession are

A
Filamentous algae
B
Free-floating angiosperms
C
Submerged rooted plants
D
Phytoplanktons
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