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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
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Give the role of VAM related to soil fertility.
Why do clown fish and sea anemone pair up? What is this relationship called?
An orchid plant is growing on the branch of a mango tree. How do you describe this interaction between the orchid and the mango tree?
Select the statement which explains best parasitism.
Define the Stenothermal organisms.
Name and explain the interaction that is seen between clownfish and sea anemones.
Name the type of association:
Clownfish and sea anemone
Name the type of association: Hummingbirds and host flowering plants
Define the following term:
Camouflage
With the help of a suitable diagram, describe the logistic population growth curve.
The number of deaths under ideal conditions is known as ______.
What is population ecology?
What is Mortality? What are its two types?
Define the term population interactions. State its two types.
Define Niche.
What is commensalism? Explain it with a suitable example.
Mutualism can be represented as the interaction between ____________.
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 morphological means of defence to avoid herbivores shown by plants.
Identify the interspecific interaction depicted in the following figure.
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
Which population interaction can be represented by'+''-'?
Rafflesia an arnoldii is an example of ______.
Amensalism is an association between two species where ______.
Lichens are association of ______.
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.
Discuss the various types of positive interactions between species.
Sea Anemone gets attached to the surface of the hermit crab. The kind of population interaction exhibited in this case is ______.
Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
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 |
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 ______.
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
In which interaction of species, both the species are at a loss?
The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:
- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
- Name the structure labelled ‘A’ and ‘E’.
- Give any one symptom of malaria.
Give one example of parasitism.
Give one example of camouflage.
Explain one type of mutualism.
