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प्रश्न
Select the statement which explains best parasitism.
पर्याय
One organism is benefited.
Both the organisms are benefited.
One organism is benefited, other is not affected.
One organism is benefited, other is affected.
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उत्तर
One organism is benefited, other is affected.
Explanation:
Parasitism is an interaction between two species in which one species (parasite) derives benefit while the other species (host) is harmed. For example, lice (parasites) on the human body and ticks on dogs represent this interaction, where the parasites receive benefits. On the other hand, these parasites reduce host fitness and harm the human body.
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संबंधित प्रश्न
Define the following term:
Commensalism
Mention any two examples where the organisms involved are commercially exploited in agriculture.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Select the statement which explains the best parasitism.
Define population.
What is population ecology?
Explain any three important characteristics of population.
The relationship between sucker fish and shark is _________.
Statement I: If one or two species are lost, it may not affect proper functioning of ecosystem.
Statement II: Loss of key species causes serious threat to functioning of ecosystem. Choose the correct alternative with reference to the above statements
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 population interaction can be represented by'+''-'?
______ interaction is the biological interaction between organisms of same population.
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 |
Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.
Which one of the following is an example of predation?
Rafflesia an arnoldii is an example of ______.
Which type of interaction is represented by the given figure?
Define ectoparasite and endoparasite and give suitable examples.
Give one example for the following type.
Biological control agent
Give one example for the following type.
Chemical defense agent
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
Observe the set of 4 figures A, B, C and D and, answer the following questions
- Which one of the figures shows mutualism?
- What kind of association is shown in D?
- Name the organisms and the association in C.
- What role is the insect performing in B?
 Fig. (A) |
 Fig. (B) |
 Fig. (C) |
 Fig. (D) |
Pick out the appropriate association representing brood parasitism.
A Tight one-to-one relationship between many species of fig tree and certain wasps is an example of ______.
Interaction between clown fish living among the stinging tentacles of sea anemone is an example of ______.
Describe mutualism.
Statement I - Calotropis growing in abandoned fields is never consumed by cattle and goats.
Statement II - Calotropis produces highly poisonous cardiac glycosides.
In light of above statements, select the most appropriate answer from the option given below.
Statement I: Gause’s ‘Competitive Exclusion Principle states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually.
Statement II: In general, carnivores are more adversely affected by competition than herbivores.
In the light of the above statements, choose the correct answer from the options given below:
