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प्रश्न
Describe mutualism.
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
Mention any two examples where the organisms involved are commercially exploited in agriculture.
Which one of the following is NOT an example of mutualism?
With the decline in the population of fig species it was noticed that the population of wasp species also started to decline. What is the relationship between the two and what could be the possible reason for decline of wasps?
Which one of the following is one of the characteristics of a biological community?
An interaction favourable to both population but no obligatory to either is ______.
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
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
Give one example for the following:
An organism which can conform
"Some species of insects and frogs have evolved with various specific features that help them from being detected."
- Justify the statement giving reasons.
- Mention any two such features.
