When one organism is benefited without affecting the other, it is called:

Related Mcqs:

1. Those chemicals, which are released by one organism but they destroy the other organism are precisely called:

   A. Allomones
   B. Allelochemics
   C. Kairomones
   D. Depresants

2. An association between two organisms belonging to different species, which live together for mutual benefit or on partner gets benefit and other, is neither benefited nor harmed is known as:

   A. Predation
   B. Parasitism
   C. Symbiosis
   D. None of these

3. The transfer of energy from organism to organism is a natural community establishes:

   A. Food chains
   B. Biological control
   C. Natural barriers
   D. All the above

4. Factor affecting wood measurement is / are:

   A. Saw thickness (Kerf)
   B. Thickness of timber
   C. The minimum length of sawn pieces, the more conservation and less wastage
   D. Wider the log, the lesser the wastage
   E. All of the above

5. Survey conducted by WAPDA has revealed that 2.0 M ha of land have become severely waterlogged affecting a population of million:

   A. 3.4
   B. 4.4
   C. 5.5
   D. 6.5

6. Habitat destruction is the indirectly acting factor while _____ hunting are the main direct human factors affecting wildlife populations:

   A. Legal
   B. Illegal
   C. Both (a) & (b)
   D. None of these

7. Which one of the following is not a matching pair of certain organism/s and the kind of association?

   A. Shark and sucker fish-commensalism
   B. Algae and fungi in lichens-parasitism
   C. Orchids growing on trees-epiphytism
   D. Cuscuta (doder) growing on other flowering plants-epiphytism

8. Type of relationship in which one organism is benefitted while there is no effect on other:

   A. Symbiosis
   B. Commensalism
   C. Mutualism
   D. Parasitism

9. Commensalism is a relationship between two organism in which:

   A. One is benefitted, other remains unaffected
   B. One is benefitted, other remains unaffected
   C. Both are benefitted
   D. Both are unaffected

10. Functions of organism matter are:

    A. Provide N.P.S.
    B. Increase water holding capacity of soil
    C. Reduce impact of falling rain drops
    D. Source of energy for micro-organisms
    E. All of the above