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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
What is mutualism?
Explain mutualism with the help of any two examples.
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Name the type of association: Hummingbirds and host flowering plants
The number of deaths under ideal conditions is known as ______.
What is Mortality? What are its two types?
Tabulate and analysis of two species population interaction.
Identify the interspecific interaction depicted in the following figure.
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
Which of the following is NOT an example of mutualism?
Which one of the following pair does NOT show commensalism?
Musk deer is an example of ______
Exarch xylem is found in:
There are two optional ways of exploitation one way is parasitism. Which is the other one ______.
A population has more young individuals compared to the older individuals. What would be the status of the population after some years?
Define stenohaline species.
Define ectoparasite and endoparasite and give suitable examples.
What is brood parasitism? Explain with the help of an example.
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
Pick out the appropriate association representing brood parasitism.
Between which among the following, the relationship is not an example of
?
Observe the graph given below.
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The graph represents inter-specific interaction between two species of Paramecia competing for the same resource in a culture medium. Paramecium caudatum and Paramecium aurelia were grown in separate cultures as well as in mixed cultures. It was found that each species grew in numbers according to the logistic equation.
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a) Which species is competitively superior? Support it with the data provided in the graph.
b) State the underlying principle for the above result and name the scientist associated with this principle.
c) Explain the mechanism in which two or more species competing with each other can co-exist.
OR
Graphs A and B shown below depict interaction of two species. Which graph indicates Mutualism? Give reason.
 |
 |
| A | B |
Write a note on parasitism.
Describe mutualism.
Some orchids live on the branches of mango trees. Name the type of interaction that exists between the mango tree and the orchid.
Explain one type of mutualism.
Parasitism is an interaction between two organisms in which ______.
