Odum did not recognise the following relationship as a positive interaction:

Related Mcqs:

1. According to Odum, the percentage of net primary production of total light intake is:

   A. 10% B. 0.15% C. 1% D. 1.50%...

2. According to Odum the light absorbed by the plant cover in terms of kcal/m2/day is:

   A. 150 B. 1,500 C. 300 D. 3,000...

3. Odum has described soil erosion as:

   A. Soil pollution B. Creeping death of soil C. Loss of living stratum D. Loss of feeding zone...

4. The study of interaction between living organisms and environment in a specific area is the study of:

   A. Photobiology B. Phytogeography C. Ecosystem D. Phytosociology...

5. The following relationship does not correspond to mutualism:

   A. Zoophily B. Zoochory C. Epiphytism D. Mycorrhiza...

6. The principal of positive economic features and the underlying hypotheses about agroforestry are:

   A. Maintains or increases site productivity through nutrient recycling and soil protection, at low capital and labour costs B. Increase the value of output on a given area of land through spatial or inter temporal intercropping of tree and other species C. Both (a) & (b) D. None of these...

7. Positive pollution of soil is due to:

   A. Excess use of fertilizers B. Addition of wastes on soil C. Reduction in soil productivity D. All of these...

8. The relationship between a climber and the host corresponds to:

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

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

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

10. Ecology is the study of relationship of:

    A. Organism and environment B. Man and environment C. Soil and water D. Husband and wife...