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प्रश्न
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.
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उत्तर
Eradication of pests will disrupt predator-prey relationships, where beneficial predatory and parasitic insects which depend upon flora and fauna as food or hosts, may not be able to survive.
Holistic approach ensures that various life forms that inhabit the field, their life cycles, patterns of feeding and the habitats that they prefer are extensively studied and considered.
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संबंधित प्रश्न
Explain different population interactions with examples.
______ is the adaptation of an organism i which it matches its colour with its surroundings to get protected from predators.
In the given picture, identify the type of interspecific interaction.
A protozoan living in the digestive tract of a flea that lives on a dog is an example of ______
Which of the following is a partial root parasite?
What is the interaction between two species called?
What is brood parasitism? Explain with the help of an example.
Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.
The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.
The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:
- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
- Name the structure labelled ‘A’ and ‘E’.
- Give any one symptom of malaria.
