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Ecosystem

203 Questions Start Errorless Test
All Exams Allen Errorless
CBSE PMT 2004 Q76 Errorless 1. Ecosystem MCQ
An ecosystem which can be easily damaged but can recover after some time if damaging effect stops will be having
A.
Low stability and low resilience
B.
High stability and high resilience
C.
Low stability and high resilience
D.
High stability and low resilience
KCET 2004 Q77 Errorless 1. Ecosystem MCQ
These belong to the catery of primary consumers ....
A.
Snakes and frogs
B.
Water insects
C.
Eagle and snakes
D.
Insects and cattle
BHU 2004 Q78 Errorless 1. Ecosystem MCQ
A man-made ecosystem is
A.
Less in diversity
B.
More in diversity
C.
Man does not make ecosystem
D.
More stable than natural ecosystem
BHU 2004 Q79 Errorless 1. Ecosystem MCQ
Which of the following supports a dense population of plankton and littoral vegetation
A.
Oligotrophic
B.
Eutrophic
C.
Lithotrophic
D.
Agroecotrophic
MP PMT 2004 Q80 Errorless 1. Ecosystem MCQ
Which of the food chains directly depends on solar radiations
A.
Predator
B.
Grazing
C.
Detritus
D.
None of these
AIIMS 2004, 08 Q81 Errorless 1. Ecosystem MCQ
The Great Barrier Reef along the east coast of Australia can be categorised as
A.
Population
B.
Community
C.
Ecosystem
D.
Biome
AIEEE Pharmacy 2004; J & K CET 2008; Odisha JEE 2011; BHU 2012 Q82 Errorless 4. Self Evaluation Test MCQ
The flow of energy among various trophic levels of an ecosystem is
A.
Unidirectional
B.
Bidirectional
C.
Multidirectional
D.
Circular
CPMT 2003; Kerala PMT 2004; BHU 2004; AIIMS 2010 Q83 Errorless 1. Ecosystem MCQ
Bacteria and fungi in a forest ecosystem are generally Or Micro-organism are [J & K CET 2008] Or The bacteria that attack dead organic matter are [ [MH CET 2001]
A.
Producers
B.
Decomposers
C.
Primary consumers
D.
Secondary consumers
E.
Tertiary consumers
MHCET 2003; Manipal 2005 Q84 Errorless 1. Ecosystem MCQ
Inverted pyramid is found in
A.
Biomass pyramid of aquatic system
B.
Energy pyramid of grassland
C.
Biomass pyramid of grassland
D.
Pyramid of number of aquatic system
AIEEE Pharmacy 2003 Q85 Errorless 1. Ecosystem MCQ
The maximum biomass of living diatoms is to be found in
A.
Marine pelagic habitats
B.
Moist soil and swamps
C.
Deep coastmines
D.
Salt lakes
DPMT 2003 Q86 Errorless 1. Ecosystem MCQ
When spontaneous process occurs then free energy of system
A.
Decrease
B.
Increase
C.
Remains same
D.
Either can increase or decrease
AIEEE Pharmacy 2003 Q87 Errorless 1. Ecosystem MCQ
Which ecosystem shows maximum genetic diversity
A.
Coniferous forests
B.
Tropical rain forests
C.
Subtropical forests
D.
Temperate forests
AIIMS 2003 Q88 Errorless 3. Critical Thinking MCQ
Mr. X is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying
A.
First trophic level
B.
Second trophic level
C.
Third trophic level
D.
Fourth trophic level
AIIMS 2003 Q89 Errorless 5. Assertion and Reason MCQ
Assertion : In a food chain members of successive higher levels are fewer in number. Reason : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
CBSE PMT 2002 Q90 Errorless 1. Ecosystem MCQ
If bamboo plant is growing in a far forest then what will be its trophic level
A.
First
B.
Second
C.
Third
D.
Fourth
BVP 2002; MP PMT 2004 Q91 Errorless 1. Ecosystem MCQ
A food chain starts with
A.
Nitrogen fixing organisms
B.
Photosynthesis
C.
Respiration
D.
Decomposers
CBSE PMT 2002 Q92 Errorless 1. Ecosystem MCQ
Which of the following food chain may not be directly dependent upon solar energy
A.
Grazing
B.
Detritus
C.
Soaking
D.
Depleting
BHU 2002 Q93 Errorless 1. Ecosystem MCQ
In a food web, each successive trophic level has
A.
Increased total energy
B.
Less total energy content
C.
More total energy content
D.
Non estimated energy content
MP PMT 2002 Q94 Errorless 1. Ecosystem MCQ
In food chain initial organisms are
A.
Top consumers
B.
Secondary consumers
C.
Primary consumers
D.
Photosynthates
Or
RPMT 2002; MHCET 2003 Q95 Errorless 1. Ecosystem MCQ
A pond is a
A.
Biome
B.
Natural ecosystem
C.
Artificial ecosystem
D.
Community of plants and animals
NCERT; CPMT 2002; RPMT 2005 Q96 Errorless 1. Ecosystem MCQ
When peacock eats snakes which eat insects thriving on green plants, the peacock is
A.
A primary consumer
B.
A primary decomposer
C.
Final decomposer
D.
The apex of food pyramid
CBSE PMT 2002 Q97 Errorless 1. Ecosystem MCQ
A plant being eaten by a herbivorous which in turn is eaten by a carnivorous makes Or The transfer of energy from organism to organism in a natural community establishes [MP PMT 1999]
A.
Food chain
B.
Food web
C.
Omnivorous
D.
Interdependent
MP PMT 2002; Odisha JEE 2005 Q98 Errorless 1. Ecosystem MCQ
Ecosystem is
A.
Open
B.
Closed
C.
Both open and close
D.
Neither open nor closed
CBSE PMT 2001; CPMT 2003; Odisha JEE 2009 Q99 Errorless 1. Ecosystem MCQ
Energy and nutrients enter a community by
A.
Primary consumer
B.
Producer
C.
Decomposer
D.
Sunlight
MHCET 2001 Q100 Errorless 1. Ecosystem MCQ
Which of the following is most important abiotic factor in pond ecosystem
A.
Water
B.
Phytoplankton
C.
Zooplankton
D.
Temperature