According to Mc Dougal, the parasitism caused due to fungi and bacteria represent a symbiotic relationship which is:

Related Mcqs:

1. Bacteria and fungi in a forest ecosystem are generally:

   A. Producers
   B. Decomposers
   C. Primary consumers
   D. Secondary consumers
   E. Tertiary consumers

2. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

3. The bacteria, which reduce nitrates in the soil to gaseous nitrogen, are known as denitrifying bacteria such as:

   A. Nitromonas
   B. Pseudomonas
   C. Nostoc
   D. Rhizobium

4. Mycorrhiza is a symbiotic association between:

   A. Algae and fungi
   B. Algae and bryophytes
   C. Algae and roots of gymnosperms
   D. Fungi and roots of higher plants

5. Relationship between nitrogen fixing bacteria and a legume plant is described as:

   A. Mutualistic
   B. Parasitic
   C. Saprophytic
   D. Commensal

6. The symbiotic association in which one partner gains benefit without benefiting or harming the other is known as:

   A. Commensalism
   B. Lichen
   C. Mutualism
   D. None of these

7. A symbiotic association between fungus and roots of higher plants is known as:

   A. Lichen
   B. Mycorrhiza
   C. Mutualism
   D. None of these

8. Symbiotic association in which both the partners get benefit and neither cansurvive without the other is called:

   A. Mutualism
   B. Commensalism
   C. Parasitism
   D. None of these

9. The fungi in a forest ecosystem act as:

   A. Macroconsumer
   B. Decomposer
   C. Omnivore
   D. Producer

10. Various fungi are known to accumulate considerable quantities of divalent metal such as:

    A. Cadmium
    B. Zinc
    C. Lead
    D. All of the above