Ecology : Definition
is a branch of science which deals with the interactions among organism and their environment.
Some of the important ecological terms coined by Scientist:-
Terms Scientist
Ecology Ernst Haeckel
Ecosystem Tansley
Biodiversity W.G. Rosen
Multiple Choice Questions
1. The ‘Red Data Book’ is the documention of rare and endangered species of :1. Animals
2. Plants
3. Fungi
[A]Only 1
[B]1 and 2
[C]2 and 3
[D]1, 2 and 3.
2. The ‘thickness’ of Stratospheric Ozone layer is measured in/on:
[A]Sieverts
[B]Dobson units
[C]Melson units
[D]Beaufort Scale . (B)
3. Littoral zone is located along the
[A]High mountains
[B]Sea
[C]Rivers
[D]Desert. (B)
4. Niche is defined as the
[A]Position of species in a community in relation to other species
[B]Place where organism lives
[C]Place where organism lives and performs its duty
[D]Place where population perform their duties
5. The rate of formation of new organic matter by rabbit in a grassland, is called
[A]Net productivity
[B]Secondary productivity
[C]Net primary productivity
[D]Gross primary productivity . (B)
6. In a lake, phytoplankton grow in abundance in
[A]Littoral zone
[B]Limnetic zone
[C]Profundal zone
[D]Benthic region . (B)
7. Actively moving organism in aquatic ecosystem
[A]Benthos
[B]Phytoplankton
[C]Zoo plankton
[D]None. (D)
8. Which of the following is primary consumer?
[A]Produce
[B]Carnivore
[C]Top carnivore
[D]Herbivor . (D)
9. Symbiosis is shown by
[A] E.coli
[B] Cuscuta
[C] Rafflesia
[D] Monotropa
10. When both partners are affected negatively the nature of interaction is
[A] commensalism
[B] competition
[C] predation
[D] amensalism
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