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प्रश्न
What is the ecological principle behind the biological control method of managing with pest insects?
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उत्तर
The principles of predation and parasitism are used in biological pest management. These are based on the ability of the predator to regulate the prey population.
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संबंधित प्रश्न
Write what do phytophagous insects feed on.
State Gause’s competitive exclusion principle.
Give one example of interspecific competition.
Define the following term:
Camouflage
With the help of a suitable diagram, describe the logistic population growth curve.
The cattle egret and grazing cattle in close association is a classic example of ______.
Explain different population interactions with examples.
The interaction in nature, where one gets to benefit on the expense of other is _________.
Define the following term:
Parasitism
Mutualism can be represented as the interaction between ____________.
Identify the correct pair that exhibits commensalism.
______ interaction is the biological interaction between organisms of same population.
Which one of the following is NOT an example of mutualism?
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.
Mycorrhizae are the example of ______.
Which one of the following is one of the characteristics of a biological community?
There are two optional ways of exploitation one way is parasitism. Which is the other one ______.
The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
Give one example for the following type.
Biological control agent
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
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 |
Between which among the following, the relationship is not an example of
?
Complete the following chart regarding population interaction and re-write:
| Sr. No. | Name of interaction | Interaction between |
| 1. | ? | Plasmodium and Man |
| 2. | ? | Leopard and Lion |
| 3. | ? | Clownfish and Sea-anemone |
Interspecific interaction could be ______.
Given below are two statements.
Statement I - The amount of energy available in an ecosystem increases at each successive trophic level.
Statement II - Transfer of energy from one trophic level to the other follows 10% law.
In light of the above statements, select the correct option given below.
Parasitism is an interaction between two organisms in which ______.
