Prep
Bee
Pakistan
Pakistan's #1 Free MCQ Practice Platform for Govt Job Exams
MCQs
Categories
Quiz
Past Papers
Quiz Mode
Login
Register
Preparing your study page...
Search MCQs
Search and filters
Search
Subject
Any subject
Agriculture
Biology
Chemical Engineering
Chemistry
Computer Science
Current Affairs
Economics
English
Everyday Science
General Knowledge
Intelligence
International Current Affairs
Islamic Studies
Judiciary And Law
Management Sciences
Mathematics
Mechanical Engineering
Medical Science
Pakistan Current Affairs
Pakistan Studies
Pedagogy
Physical Education
Physics
Psychology
Sociology
Software Engineering
Urdu
Difficulty
Any
Easy
Medium
Hard
Language
Any
English
Urdu
Bilingual
Sort
Latest
Oldest
Most attempted
Apply
MEDIUM
ENGLISH
Agriculture
The two major functional components of an ecosystem are:
A
Energy flow and food chain
Option A
B
Mineral recycling and energy flow
Option B
C
Food chain and decomposers
Option C
D
Energy flow and decomposers
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The driving force of the ecosystem is:
A
Carbohydrates in plants
Option A
B
Biomass
Option B
C
Solar energy
Option C
D
Producers
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The pyramid of energy is always:
A
Inverted
Option A
B
Upright
Option B
C
Both of these/Horizontal
Option C
D
Inverted in forest ecosystem
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The trophic level of lion is a forest ecosystem is:
A
T3
Option A
B
T4
Option B
C
T2
Option C
D
T1
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
In forest ecosystem, pyramid of number is:
A
Upright
Option A
B
Inverted
Option B
C
Any of the two
Option C
D
None of the above
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
Which of the following is non-renewable source of energy:
A
Mineral
Option A
B
Water
Option B
C
Forest
Option C
D
Solar energy
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The transfer of energy from organism to organism is a natural community establishes:
A
Food chains
Option A
B
Biological control
Option B
C
Natural barriers
Option C
D
All the above
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
Which is a primary consumer?
A
Scavenger
Option A
B
Saprophyte
Option B
C
Carnivore
Option C
D
Herbivore
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
Tip of ecological pyramid is occupied by:
A
Herbivores
Option A
B
Carnivores
Option B
C
Producers
Option C
D
None of these
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
If precise quantitative measurements are made on a convened ecosystem in a laboratory, we will find amounts of which of the following to be a one-way flow rather than cyclic?
A
Carbon
Option A
B
Potassium
Option B
C
Nitrogen
Option C
D
Free energy
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The primary productivity is minimum in the following ecosystem:
A
Tropical rainforest
Option A
B
Temperate grassland
Option B
C
Tropical deciduous forest
Option C
D
Desert shrub
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
Ecosystem creates:
A
Food chains
Option A
B
Food web
Option B
C
Both (a) & (b)
Option C
D
None of the above
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The decomposers in an ecosystem constitute the following trophic level:
A
T1
Option A
B
T3
Option B
C
T5
Option C
D
T4
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
Ecological pyramids are of:
A
Two types
Option A
B
Three types
Option B
C
Four types
Option C
D
Five types
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
Which one of the following is a reversible source of energy?
A
Petroleum
Option A
B
Coal
Option B
C
Nuclear fuel
Option C
D
Trees
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
What is contributed from the outer space in an ecosystem?
A
All the atmospheric gases
Option A
B
Only carbon, hydrogen and oxygen
Option B
C
Energy only
Option C
D
All the above components
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The zooplanktonic forms are:
A
Primary consumers
Option A
B
Secondary consumers
Option B
C
Carnivores
Option C
D
Primary producers
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The cycling of elements in an ecosystem is called:
A
Chemical cycle
Option A
B
Biogeochemical cycle
Option B
C
Geological cycle
Option C
D
Geochemical cycle
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
In an ecosystem, the population of:
A
Primary producers is larger than that of primary consumers
Option A
B
Secondary consumers is the largest because they are the most powerful
Option B
C
Primary consumers outnumber primary producers
Option C
D
Primary consumers is the least dependent upon primary producers
Option D
Show Answer
Open Detail
MEDIUM
ENGLISH
Agriculture
The number of producers and consumers in an ecosystem is mutually controlled by a:
A
Productivity control
Option A
B
Food chain mechanism
Option B
C
Feedback mechanism
Option C
D
Any of these
Option D
Show Answer
Open Detail
Previous page
1
5746
5747
5748
5749
5750
5754
Next page