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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
Why do clown fish and sea anemone pair up? What is this relationship called?
Predation and parasitism are which type of interactions?
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.
Amensalism can be represented as ______
What are the organisms that feed on plant sap and other plant parts called?
Define ectoparasite and endoparasite and give suitable examples.
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
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 |
Association between clown fish and sea anemone is ______.
