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

The species of plants that plays a vital role in controlling the relative abundance of other species in a community is called _________.

A
alien species
B
endemic species
C
exotic species
D
keystone species
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the correct statements :

A. Detrivores perform fragmentation.

B. The humus is further degraded by some microbes during mineralization.

C. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.

D. The detritus food chain begins with living organisms.

E. Earthworms break down detritus into smaller particles by a process called catabolism.

Choose the correct answer from the options given below :

A
B, C, D only
B
C, D, E only
C
D, E, A only
D
A, B, C only
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

In the equation GPP $$-$$ R = NPP

GPP is Gross Primary Productivity

NPP is Net Primary Productivity

R here is __________.

A
Respiratory quotient
B
Respiratory loss
C
Reproductive allocation
D
Photosynthetically active radiation
4
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
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