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प्रश्न
Tabulate and analysis of two species population interaction.
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उत्तर
MUTUALISM (+, +): It is the type of interaction where both species benefit from the interaction. Mutualism may be facultative when the species involved are capable of existence independent of one another, or obligate, when the relationship is imperative of the existence of one or both species.
Examples: i. Certain bacteria in the caeca and intestine of herbivores aid in the digestion of cellulose. ii. The cross pollination of flowers by insects and birds seeking nectar and pollen which is of great importance in agriculture.
COMMENSALISM (+, 0): The concept of commensalism has been broadened in recent years, to apply to coactions other than those centering on food such as cover, support, production, and locomotion.
Examples: i. Barnacles attached to Whales travel thousands of miles collecting and filtering food from the moving water.The whales are not affected by the barnacles. ii. Egrets usually are present near cattle. they catch insects which are disturbed by the cattle.
संबंधित प्रश्न
How is mutualism different from commensalism?
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Define mutualism.
______ interaction is the biological interaction between organisms of same population.
Match the Columns.
| Column A | Column B | ||
| i. | Lice on humans | a. | Endoparasites |
| ii. | Ectoparasites on marine fishes | b. | Grows on hedge plants |
| iii. | Cuscuta | c. | Ectoparasites |
| iv. | Plasmodium and humans | d. | Copepods |
Substantiate by giving two reasons as to why a holistic understanding of the flora and fauna the cropland is required before introducing an appropriate biocontrol method.
Which type of interaction is represented by the given figure?
Observe the set of 4 figures A, B, C and D and, answer the following questions
- Which one of the figures shows mutualism?
- What kind of association is shown in D?
- Name the organisms and the association in C.
- What role is the insect performing in B?
 Fig. (A) |
 Fig. (B) |
 Fig. (C) |
 Fig. (D) |
Give one example for the following:
A parasitic angiosperm
Match the Column I with Column II.
| Column I | Column II |
| A. Lichen | (i) Commensalism |
| B. Shark and Pilot fish | (ii) Mutualism |
| C. Barnacles on the back of a whale | (iii) Symbiotic obligatory relationship |
| D. Sharks and dolphins | (iv) Competition |
