Q.1 The Stability of ecosystem is maintained by_________.
Homeostasis Diversity of Species Food web
Q.2 The factors, the favours, the implementations of IPM in the country at the farm level are_________.
Crop diversity Intercropping Both
Q.3 In population ecology, the density dependent environmental factors have been described imperfect by________.
Andrewartha & Birch Milne Pimentel
Q.4 The major theoretical contributions of population ecology can be considered in___________.
Two groups Four groups Five groups
Q.5 Detailed ecological studies ( including life- table studies) , extended over pre-reguisite for forecasting of _______.
Regular pests Sporadic pests Potential pests
Q.6 The two approaches employed for the study of ecosystem are________.
Physical and biological Hological and Merological Autecological and Synecology
Q.7 Organisms that are adapted to a wider range of temperature tolerance are termed as_________.
Stenothermal Eurythermal Polythermal
Q.8 In ecology , the “ Low of tolerance “ was given by________.
Leibig (1840) Penmal (1956) Shelford
Q.9 Population ecology and population genetics are often considered together, termed as__________.
Community ecology Population ecology Evolutionary ecology
Q.10 The only method of making direct quantitative measurements of the undisturbed flight behavior of insect at an attitude is though________.
Visual observation Video techniques Entomological radars
Q.11 Under ideal condition to increase in the population is_______.
Sigmoidal Constant rate Exponential
Q.12 Insect which are able to survive over wide range of effective temperature_______.
Stenothermic Homeostasis Eurythermic
Q.13 When a substances becomes concentrated instead of being dispersed with each link of food chain, the phenomenon is called as_________.
Saturation Biomagnification Food web
Q.14 In life tables type I curve shows_______.
Law death rate of young High mortality in old Both
Q.15 The place where an organism live is known as_________.
Food chain Niche Habitat
Q.16 Fundamentals of ecology “ was written by_________.
S.P.Singh E.P.Odum A.S.Atwal
Q.17 The chief mechanism for moving nitrogen from air reservoir into productivity cycle is_______.
Manuring Rain Biological fixation
Q.18 A measure of the innate ability of a population to survive and reproduce is called as_____________.
Carrying capacity Biotype Biotic potential
Q.19 When insects remain in dormant stage due to temperatures lower then the optimum, they are said to have undergone_________.
Hibernation Aestivation Quiscence
Q.20 When insects remain in dormant stage due to temperatures higher then the optimum, they are said to have undergone_________.
Q.21 All living organisms on earth interacting with physical environment as a whole are referred to as the________.
Biosphere Biome Ecosystem
Q.22 A specific strain of a species adapted to a particular set of environmental conditions_____________.
Biotype Ecotype Allotype
Q.23 The rate of death and expectation of life at various time intervals during the life span of an insect are indicated by________.
Density Natality Life table
Q.24 The specific position of a specific within a community including utilization of resources both in qualitative and quantitative terms is referred to as_______.
Niche Habitat Biome
Q.25 Study of associations of organisms in relation to a particular area or habitat is__________.
Synecology Autecology Bioecology
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