MP PMT 2001; BHU 2001
Q101
Errorless
1. Ecosystem
MCQ
Which are the biotic components of forest ecosystem
A.
Producers
B.
Decomposers
C.
Consumers
D.
All of the above
MP PMT 2001
Q102
Errorless
1. Ecosystem
MCQ
Which of the following is an artificial ecosystem
A.
Rice-field
B.
Forest
C.
Grassland
D.
Lake
CBSE PMT 2001; MHCET 2003
Q103
Errorless
1. Ecosystem
MCQ
When the number of organisms at successive levels are plotted, they assume the shape of a pyramid. This is called the pyramid of
A.
Energy
B.
Number
C.
Biomass
D.
Both
BHU 2001; Pb. PMT 2004
Q104
Errorless
1. Ecosystem
MCQ
In a food chain, the total amount of living material is depicted by
A.
Pyramid of biomass
B.
Pyramid of energy
C.
Pyramid of number
D.
Trophic levels
MP PMT 2001, 02; BHU 2001
Q105
Errorless
1. Ecosystem
MCQ
Generally the food chain has how many trophic levels
A.
One
B.
Two
C.
Three or Four
D.
Three
MHCET 2001; BVP 2001; Odisha JEE 2011
Q106
Errorless
1. Ecosystem
MCQ
In a food chain herbivores are [NCERT Pg. No. 209]
A.
Primary producers
B.
Primary consumers
C.
Secondary consumers
D.
Decomposers
AIIMS 2001; BVP 2001
Q107
Errorless
1. Ecosystem
MCQ
The ecosystem consists of
A.
Producers
B.
Consumers
C.
Decomposers
D.
All of these
MP PMT 2001; AFMC 2006; CBSE PMT (Mains) 2012; NEET 2013
Q108
Errorless
1. Ecosystem
MCQ
The rate of formation of new organic matter by rabbit in a grassland, is called
A.
Net productivity
B.
Secondary productivity
C.
Net primary productivity
D.
Gross primary productivity
CPMT 2001; Kerala PMT 2004; HP PMT 2005; Kerala CET 2005; J & K CET 2010; MP PMT 2010; Odisha JEE 2010; WB JEE 2016
Q109
Errorless
1. Ecosystem
MCQ
Transition zone between two ecosystems or vegetational regions is termed
Or
Overlapping region between two ecosystems
[DPMT 2006; WB JEE 2011]
A.
Ecocline
B.
Ecotone
C.
Ecad
D.
Barrier
MHCET 2001; Pb. PMT 2004; RPMT 2006
Q110
Errorless
1. Ecosystem
MCQ
During food chain the maximum energy is stored in
A.
Producers
B.
Decomposers
C.
Herbivores
D.
Carnivores
KCET 2000
Q111
Errorless
1. Ecosystem
MCQ
The lentic ecosystem includes which of following water
A.
Rain
B.
Running
C.
Standing
D.
Gravitational
BVP 2000; RPMT 2005; AFMC 2010; AMU (Med.) 2010
Q112
Errorless
1. Ecosystem
MCQ
Pyramid of energy is
A.
Upright
B.
Inverted
C.
Oblique
D.
None of these
CPMT 2000
Q113
Errorless
1. Ecosystem
MCQ
On the global basis the maximum productivity is shown by
A.
Aquatic ecosystem
B.
Grasslands
C.
Forests
D.
Deserts
AIIMS 2000
Q114
Errorless
1. Ecosystem
MCQ
The flora and fauna in lakes or ponds are
A.
Lentic biota
B.
Lotic biota
C.
Abiotic biota
D.
Field layer
CPMT 2000; WB JEE 2009
Q115
Errorless
1. Ecosystem
MCQ
Trophic levels are formed by
A.
Organisms linked in food chain
B.
Only plants
C.
Only animals
D.
Only carnivores
BVP 2000
Q116
Errorless
1. Ecosystem
MCQ
Animals which live at the bottom of sea are
A.
Nekton
B.
Diatom
C.
Benthos
D.
Plankton
MP PMT 2000, 03
Q117
Errorless
1. Ecosystem
MCQ
Food chain consists of
A.
Producer, consumer and decomposer
B.
Producer, carnivore and decomposer
C.
Producer and primary consumer
D.
Producer, herbivore and carnivore
CPMT 2000
Q118
Errorless
4. Self Evaluation Test
MCQ
The ecosystem of a pond is referred as
A.
Lotic
B.
Lentic
C.
Xeric
D.
Benthic
MP PMT 1999; CBSE PMT 2001
Q119
Errorless
1. Ecosystem
MCQ
Tip of ecological pyramid is occupied by
A.
Herbivores
B.
Carnivores
C.
Producers
D.
Decomposers
MP PMT 1999
Q120
Errorless
1. Ecosystem
MCQ
Green plants constitute
A.
First trophic level
B.
Second trophic level
C.
Third trophic level
D.
Complete food chain
Pb. PMT 1999; RPMT 1999
Q121
Errorless
1. Ecosystem
MCQ
Cyberviatic is associated with
A.
Flow of energy
B.
Cycle of energy
C.
Energy released
D.
Study of energy
NCERT; AFMC 1999; Pb. PMT 2004; HP PMT 2005
Q122
Errorless
1. Ecosystem
MCQ
Which is the correct sequence in the food chain in a grassland
A.
Grass $\rightarrow$ wolf $\rightarrow$ deer $\rightarrow$ buffalo
B.
Bacteria $\rightarrow$ grass $\rightarrow$ rabbit $\rightarrow$ wolf
C.
Grass $\rightarrow$ insect $\rightarrow$ birds $\rightarrow$ snakes
D.
Grass $\rightarrow$ snake $\rightarrow$ insect $\rightarrow$ deer
KCET 1999
Q123
Errorless
1. Ecosystem
MCQ
A rat feeding upon potato tuber is
A.
Producer
B.
Carnivore
C.
Decomposer
D.
Primary consumer
CPMT 1999, 2001, 02, 10; KCET 2000; MP PMT 2001, 02; HP PMT 2005; Odisha JEE 2005; WB JEE 2011
Q124
Errorless
1. Ecosystem
MCQ
The pyramid that cannot be inverted in a stable ecosystem, is pyramid of
A.
Number
B.
Energy
C.
Biomass
D.
All the above
BHU 1999
Q125
Errorless
1. Ecosystem
MCQ
The dominant second trophic level, in a lake ecosystem, is
A.
Benthos
B.
Plankton
C.
Zooplankton
D.
Phytoplankton