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Home » General Knowledge » General Science » Aptitude Test - 24
1.Hekistotherm vegetation is found in which of the following region?
A. High temperature
B. Very low temperature
C. High temperature with an alternating low temperature
D. High temperature
2.Pyramid of numbers for grassland ecosystem is____________
A. Decreases
B. Lateral
C. Inverted
D. Decreases
3.Which of the following statement is CORRECT about the pyramid of energy?
A. It is always upright
B. It is always inverted
C. It doesn’t exist
D. It is always upright
4.Which of the following has a higher assimilation efficiency?
A. Omnivore
B. Herbivore
C. Carnivore
D. Omnivore
5.Which of the following ecosystem consists of forest, grassland and deserts?
A. Artificial ecosystem
B. Aquatic ecosystem
C. Natural ecosystem
D. Artificial ecosystem
6.Mark the one, which comes under a lotic ecosystem?
A. Ocean
B. Lake
C. Pond
D. Ocean
7.Which of the following is inter-tidal zone between land and open sea?
A. Benthic zone
B. Pelagic zone
C. Neritic zone
D. Benthic zone
8.Which of the following zone lies at the bottom of the sea?
A. Littoral
B. Benthic
C. Neritic zone
D. Littoral
9.The collection of individuals which belongs to the same species when live together in a region is known as ____________
A. Keystone species
B. Community
C. Guild
D. Keystone species
10.Name the term which defines the study of the characteristics and parameters of the population.
A. Demography
B. Population ecology
C. Population density
D. Demography
11.Which of the following term defines the ability of the individual in the population to produce new individuals?
A. Dispersion
B. Mortality
C. Natality
D. Dispersion
12.Which of the following survivorship curve is suitable for the organisms who breeds several times during the course of their life span?
A. Type IV
B. Type III
C. Type II
D. Type IV
13.Name those organisms who can breed only once in their lifetime?
A. Dispersed
B. Clumped
C. Iteroparous
D. Dispersed
14.Which of the following structure can be seen in the diminishing population? a) Upright
A. Upright
B. Inverted
C. Bell shaped
D. Upright
15.A group of people coexist within space and time and interact with each other is known as ____________
A. Keystone species
B. Community
C. Guild
D. Keystone species
16.Which of the following defines the separation of two different communities?
A. Ecotone
B. Edge effect
C. Ecade
D. Ecotone
17.What is an edge effect?
A. Community complexity
B. Community classification
C. Increased diversity at the boundary of ecotone
D. Community complexity
18.Which of the following is TRUE for the stabilized ecosystem?
A. P-R=1
B. P/R < 1
C. P/R > 1
D. P-R=1
19.Name the term which defines the ability of community return to its original state after being displaced?
A. Dispersed
B. Clumped
C. Resistance
D. Dispersed
20.Which of the following is a diversity index?
A. Upright index
B. Inverted index
C. Bell shaped index
D. Upright index
21.On an ecological time scale, the process of directional change in community composition is known as ____________
A. Keystone species
B. Succession
C. Guild
D. Keystone species
22.Which of the following selection pressure is obtained in late succession stage?
A. K- selection
B. R- selection
C. E-selection
D. K- selection
23.What is the entropy of the early succession community?
A. Medium
B. Low
C. High
D. Medium
24.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. Climax
25.Which of the following succession processes describes the development of bare area without any form of life?
A. Dispersed
B. Clumped
C. Ecesis
D. Dispersed
26.Which of the following factor is NOT responsible for autotrophic succession?
A. Climate
B. Soil erosion
C. Man
D. Climate
27.Name the scientist who had described the term climax.
A. Linneus
B. Clement
C. Puri
D. Linneus
28.Name the type of community which is maintained by the man or his domestic animals.
A. Climatic
B. Edaphic
C. Disclimax
D. Climatic
29.Who developed the polyclimax theory?
A. Daubenmire
B. R.H Whittaker
C. Clement
D. Daubenmire
30.Which of the following term is given to the process of successful establishment of the species?
A. Ecesis
B. Aggregation
C. Nudation
D. Ecesis
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