Organism and Its Environment
Organism and Its Environment: Overview
This Topic covers sub-topics such as Niche, Ecology, Habitat, Biome, Organisms and Populations, Abiotic Factors, Ecotone, Edaphic Factors, Climatic Factors, Ecotones and Edge Effect, Levels of Organisation in Ecology and, Biotic Potential
Important Questions on Organism and Its Environment
The following graph represents the organismic response to certain environmental, condition (e.g., temperature) :
Which one of these, or , depicts conformers?
Which one of the following correctly represents an organism and its ecological niche?
Abundance of a species in a population, within habitat is called
Which of the following statements are true related to ecology ? The correct statements
(i) Ecologically, habitat is the place in which an organism lives
(ii) Niche is the functional role of an organism in an ecosystem
(iii) Population is a group of organisms of the different species in a specific area at a specific time
(iv) An ecosystem is a functional unit of the biosphere
(v) Ecological organization consists of nine integrative levels, ranging from cell to ecosphere
Match the following ?
| List I | List II | ||
| (i) | Euryhaline | (a) | Tolerant to wide range of temperatures |
| (ii) | Stenohaline | (b) | Restricted to a narrow range of temperature |
| (iii) | Eurythermal | (c) | Tolerant to wide range of salinity |
| (iv) | Stenothermal | (d) | Restricted to a narrow range of salinity |
Arrange the following scientists in chronological order based on their contribution in Ecology
I. Odum
II. Warming
III. A.G Tansley
IV. Reiter
Which of the following statements is/are correct?
The best pH range of the soil for cultivation of crop plants is
The natural residence of every organism id known as:
Maintenance of internal favourable conditions, despite changes in external environment is
Organisms which are able to tolerate a wide range of salt concentration are termed as
Study the following statements:
I) Camels are partial regulators or partial conformers.
II) In the limnetic zone of a lake, decomposers are almost absent.
III) Ten per cent law for the transfer of energy from one trophic level to the next was proposed by Elton.
IV) The natural reservoir of phosphorus is the sea.
V) In case of a parasitic food chain, the pyramid of numbers is inverted.
Among the above, the incorrect statements are
In a thermally stratified lake in temperate region, the upper layer in winter is
In the given graph, which type of Biome is represented by ?
Temperature changes in aquatic environment can affect
The part of the Earth and atmosphere supporting life is
The term ecology was proposed by
Presence of higher diversity, at the junction of territories of two different habitats is called
