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प्रश्न
Define the following term:
Parasitism
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उत्तर
Parasitism is generally defined as a relationship between the two living species in which one organism is benefitted at the expense of the other. The organism that is benefitted is called the parasite, while the one that is harmed is called the host.
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संबंधित प्रश्न
Apart from being a part of the food chain, predators play other important roles. Mention any two such roles supported by examples.
State Gause’s Competitive Exclusion Principle.
Name important defence mechanisms in plants against herbivory.
What is the ecological principle behind the biological control method of managing with pest insects?
Select the statement which explains best parasitism.
- One organism is benefited
- Both the organisms arc benefited
- One organ is benefitted, other is affected.
- One organism is benefited, other is affected
Define the Stenothermal organisms.
Name the type of association: Hummingbirds and host flowering plants
Give one example of Mutualism.
Name important defense mechanisms in plants against herbivores.
Enlist and explain the important characteristics of a population.
What is population ecology?
What is Commensalism? Explain it with a suitable example.
Predation and parasitism are which type of interactions?
Using '-' to depict inhibition and '+' to depict benefit, mutualism between two species can be represented as ____________.
Mutualism can be represented as the interaction between ____________.
Identify the morphological means of defence to avoid herbivores shown by plants.
The correct description for the interspecific interaction shown in the given figure is ______
In the given picture, identify the type of interspecific interaction.
Match the Columns.
| Column A | Column B | ||
| i. | Lice on humans | a. | Endoparasites |
| ii. | Ectoparasites on marine fishes | b. | Grows on hedge plants |
| iii. | Cuscuta | c. | Ectoparasites |
| iv. | Plasmodium and humans | d. | Copepods |
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.
Amensalism can be represented as ______
Amensalism is an association between two species where ______.
What are the organisms that feed on plant sap and other plant parts called?
Define ectoparasite and endoparasite and give suitable examples.
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 | ______ |
In an association of two animal species, one is a termite which feeds on wood and the other is a protozoan Trichonympha present in the gut of the termite. What type of association they establish?
Give one example for the following type.
Camouflaged animal
Give one example for the following type.
Biological control agent
Discuss the various types of positive interactions between species.
Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.
Between which among the following, the relationship is not an example of
?
Interspecific interaction could be ______.
A Tight one-to-one relationship between many species of fig tree and certain wasps is an example of ______.
In which interaction of species, both the species are at a loss?
