Most Important ecology mcqs : Botany Knowledge
The study of organisms and how they interact with the environment around them, is known as Ecology. An ecologist studies the relationship between living things and their habitats. In this article we cover the most important MCQ's that are helpful to your exam preparation:-
Most important Algae MCQ's Most important Plant Taxonomy MCQ's
1 Niche is
(a) the range of temperature that the organism needs to live
(b) the physical space where an organism lives
(c) all the biological factors in the organism’s environment
(d) the functional role played by an organism where it lives
Answer : (d) the functional role played by an organism where it lives
2 Which one of the following pairs is mismatched?
(a) Savanna — Acacia trees
(b) Prairie — Epiphytes
(c) Tundra — Permafrost
(d) Coniferous forest — Evergreen trees
Answer : (b) Prairie — Epiphytes
3 Keystone species in an ecosystem are those which
(a) are present in maximum number
(b) are most frequent
(c) attain a large biomass
(d) contribute to ecosystem properties
Answer : (d) contribute to ecosystem properties
4 Niche of a species in an ecosystem refers to its
(a) function at its place of occurrence
(b) place of its occurrence
(c) competitive ability
(d) centre of origin
Answer : (a) function at its place of occurrence
5 Tropical forests occur in India
(a) Jammu and Kashmir
(b) Rajasthan
(c) Kerala and Assam
(d) The forests do not occur in India
Answer : (c) Kerala and Assam
6 Xeric environment is characterised by
(a) precipitation
(b) low atmospheric humidity
(c) extreme of temperature
(d) high rate of vapourisation
Answer : (b) low atmospheric humidity
7 Study of inter-relationships between living organisms and their environment is
(a) Ecology
(b) Ecosystem
(c) Phytogeography
(d) Ethology
Answer : (a) Ecology
8 The sum total of the population of the same kind of organisms constitute
(a) colony
(b) genus
(c) community
(d) species
Answer : (d) species
9 What is true for individuals of same species?
(a) Live in same niche
(b) Live in same habitat
(c) Interbreeding
(d) Live in different habitats
Answer : (c) Interbreeding
10 Which part of the world has high density of organisms?
(a) Deciduous forests
(b) Grasslands
(c) Savannas
(d) Tropical rain forests
Answer : (d) Tropical rain forests
11 An association of individuals of different species living in the same habitat and having functional interactions is
(a) ecological niche
(b) biotic community
(c) ecosystem
(d) population
Answer : (b) biotic community
12 Competition for light, nutrients and space is most severe between
(a) closely related organisms growing in different niches
(b) closely related organisms growing in the same area/niche
(c) distantly related organisms growing in the same habitat
(d) distantly related organisms growing in different niches
Answer : (b) closely related organisms growing in the same area/niche
