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Free download in PDF Ecosystem Multiple Choice Questions (MCQs) and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Name the term which defines the ability of community return to its original state after being displaced?
[A]
Dispersed
[B]
Clumped
[C]
Resistance
[D]
Resilience
(2)
Which of the following is a diversity index?
[A]
Upright index
[B]
Inverted index
[C]
Bell shaped index
[D]
Simpson’s index
Answer: Simpson’s index
(3)
On an ecological time scale, the process of directional change in community composition is known as ____________
[A]
Keystone species
[B]
Succession
[C]
Guild
[D]
Population
(4)
Climax community is the end point of the succession
(5)
Which of the following selection pressure is obtained in late succession stage?
[A]
K- selection
[B]
R- selection
[C]
E-selection
[D]
L- selection
(6)
What is the entropy of the early succession community?
[A]
Medium
[B]
Low
[C]
High
[D]
Very high
(7)
Name the succession in which development of the biotic community starts after the destruction of an existing community?
[A]
Climax
[B]
Seral
[C]
Primary succession
[D]
Secondary succession
Answer: Secondary succession
(8)
Which of the following succession processes describes the development of bare area without any form of life?
[A]
Dispersed
[B]
Clumped
[C]
Ecesis
[D]
Nudation
(9)
Which of the following factor is NOT responsible for autotrophic succession?
[A]
Climate
[B]
Soil erosion
[C]
Man
[D]
Microorganisms
(10)
Name the scientist who had described the term climax.
[A]
Linneus
[B]
Clement
[C]
Puri
[D]
Cowles
(11)
Name the type of community which is maintained by the man or his domestic animals.
[A]
Climatic
[B]
Edaphic
[C]
Disclimax
[D]
None of these
(12)
Who developed the polyclimax theory?
[A]
Daubenmire
[B]
R.H Whittaker
[C]
Clement
[D]
Tansley
(13)
Which of the following term is given to the process of successful establishment of the species?
[A]
Ecesis
[B]
Aggregation
[C]
Nudation
[D]
Competition
(14)
What is the effect on biodiversity when we move from pole to equator?
[A]
High
[B]
Increases
[C]
Decreases
[D]
Remains same
(15)
Population of which of the following will be highest in the food chain?
[A]
Decomposer
[B]
Primary Producer
[C]
Photosynthetic organism
[D]
Secondary consumers
Answer: Photosynthetic organism
(16)
Who is food component of the grazing food chain?
[A]
Consumer
[B]
Decomposer
[C]
Photosynthetic living organism
[D]
Photosynthetic consumers
(17)
System resulting from interaction of all the known living factors and populaton of all the species of a unit area is
[A]
Ecology
[B]
Genetics
[C]
Science of plants and animal
[D]
Ecosystem
(18)
In which of the following plants are included in any food chain?
[A]
Primary Producer
[B]
primary comsumer
[C]
Primary predator& producer
[D]
Primary decomposer
(19)
Which of the following is the correct statement for food chain?
[A]
Every chain formed by nutritional relations is used to understand energy flow
[B]
Energy component of the food chain forms trophic level
[C]
Inter- relation amongest different food chain froms food web
[D]
All of the given
(20)
Which of the following uses maximum energy?
[A]
Primary consumer
[B]
Secondary consumer
[C]
Decomposer
[D]
Primary Producers
Answer: Primary Producers
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