Engineering Questions with Answers - Multiple Choice Questions
MCQs on Succession
1 - Question
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
View Answer
Answer: b
Explanation: Succession is the universal process of change in community composition over an ecological time scale. It is a unidirectional change.
2 - Question
Climax community is the end point of the succession
a) True
b) False
View Answer
Answer: a
Explanation: When the succession reaches to the point of relative stability, it is considered as the climax community. It marks the end point of the succession.
3 - Question
Which of the following selection pressure is obtained in late succession stage?
a) K- selection
b) R- selection
c) E-selection
d) L- selection
View Answer
Answer: a
Explanation: Selection pressure has been categorized by the process of growth pattern, i.e., r-selection and k-selection. R-selection applies in early stage while k-selection in late stage.
4 - Question
What is the entropy of the early succession community?
a) Medium
b) Low
c) High
d) Very high
View Answer
Answer: c
Explanation: Entropy measures the degree of randomness. Early stage has high entropy while late stage has low entropy.
5 - Question
. 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
View Answer
Answer: d
Explanation: Succession happens in a bare area where no community existed before is known as a primary, community and the succession which is followed by the destruction of primary community is called secondary succession.
6 - Question
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
View Answer
Answer: d
Explanation: Nudation is the first stage of succession where there is a development of the bare area by several external factors takes place.
7 - Question
Which of the following factor is NOT responsible for autotrophic succession?
a) Climate
b) Soil erosion
c) Man
d) Microorganisms
View Answer
Answer: d
Explanation: The bare area in autotrophic succession develops by several factors like climatic, biotic, and topographic.
8 - Question
Name the scientist who had described the term climax.
a) Linneus
b) Clement
c) Puri
d) Cowles
View Answer
Answer: b
Explanation: Clement had given the term climax to describe the idealized endpoint of succession. The climax is the final community which cannot be replaced further.
9 - Question
Name the type of community which is maintained by the man or his domestic animals.
a) Climatic
b) Edaphic
c) Disclimax
d) Subclimax
View Answer
Answer: c
Explanation: Disclimax community is the stable community which is maintained by a man and his domestic animals. It is also known as disturbance climax.
10 - Question
Who developed the polyclimax theory?
a) Daubenmire
b) R.H Whittaker
c) Clement
d) Tansley
View Answer
Answer: d
Explanation: Tansley developed the polyclimax theory which shows the mosaic vegetational climax controlled by soil moisture, nutrient and topography.
11 - Question
Which of the following term is given to the process of successful establishment of the species?
a) Ecesis
b) Aggregation
c) Nudation
d) Competition
View Answer
Answer: a
Explanation: Ecesis is considered as the complete as it describes the adjustment of the species and its successful establishment in any new area.
12 - Question
What is the effect on biodiversity when we move from pole to equator?
a) High
b) Increases
c) Decreases
d) Remains same
View Answer
Answer: b
Explanation: Biodiversity varies with changes in altitude or latitude. It increases when we move from poles to equator. There is a decrease in biodiversity as we move from lower to the higher altitude, i.e., mountain.