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प्रश्न
Describe mutualism.
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उत्तर
- This interaction is obligatory and interdependent.
- It benefits both the species.
- Lichens represent an intimate, mutualistic relationship between a fungus and photosynthetic algae, or cyanobacteria.
- The most spectacular and evolutionarily fascinating examples of mutualism are found in plant-animal relationships.
- Plants need the help of animals for pollinating their flowers and dispersing their seeds.
- Animals obviously have to be rewarded in the form of pollen and nectar for pollinators and juicy and nutritious fruits for seed dispersers.
- Co-evolution of mutualists.
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संबंधित प्रश्न
Which day is observed as ‘World Environment Day’?
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Give one example of mutualism.
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
In the given picture, identify the type of interspecific interaction.
In a pond, we see plants which are free-floating; rooted–submerged; rooted emergent; rooted with floating leaves; Write the type of plant against the following examples.
| Plant Name | Type | |
| a. | Hydrilla | ______ |
| b. | Typha | ______ |
| c. | Nymphaea | ______ |
| d. | Lemna | ______ |
| e. | Vallisneria | ______ |
Give one example for the following type.
Predator animal
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
What are the special adaptations that endoparasites show?
