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प्रश्न
Explain parasitism.
Define the following term:
Parasitism
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.
संबंधित प्रश्न
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Name important defence mechanisms in plants against herbivory.
What is the ecological principle behind the biological control method of managing with pest insects?
Mention any two examples where the organisms involved are commercially exploited in agriculture.
Name the type of association: Hummingbirds and host flowering plants
Name important defense mechanisms in plants against herbivores.
Define Population.
The cattle egret and grazing cattle in close association is a classic example of ______.
In Logistic growth curve lag phase shows______.
What is population ecology?
Match the following and choose the correct combination from the options given below.
| Column I | Column II |
| Mutualism | Lion and deer |
| Commensalism | Round worm and man |
| Parasitism | Birds compete with squirrels for nuts |
| Competition | Sea anemone on hermit crab |
| Predation | Barnacles attached to Whales |
The relationship between sucker fish and shark is _________.
Which principle/theory states that 'Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior will be eliminated eventually.'?
Parasitism can be conectly represented as ____________.
With the decline in the population of fig species it was noticed that the population of wasp species also started to decline. What is the relationship between the two and what could be the possible reason for decline of wasps?
Which of the following is not an example of commensalism?
There are two optional ways of exploitation one way is parasitism. Which is the other one ______.
Which type of interaction is represented by the given figure?
In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
What is commensalism?
Define ectoparasite and endoparasite and give suitable examples.
Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.
Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
Carnivorous animals-lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards take smaller ones. This mechanism of competition is referred to as ______.
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 |
A bird laying its egg in the nest of another bird is the type of ______.
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
"Some species of insects and frogs have evolved with various specific features that help them from being detected."
- Justify the statement giving reasons.
- Mention any two such features.
What happens to an inferior competitor if a superior competitor is present in the same environment?
