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प्रश्न
Give one example of commensalism.
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उत्तर
The pilot fish (Naucrates) always accompanies sharks without becoming attached to their bodies. When a shark eats its prey, it feeds on falling food particles.
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संबंधित प्रश्न
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Write what do phytophagous insects feed on.
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?
What is the ecological principle behind the biological control method of managing with pest insects?
Define the following term:
Interspecific competition
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
Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle, so as to facilitate parasitization of its primary host.
Define Population.
What is Commensalism? Explain it with a suitable example.
Predation and parasitism are which type of interactions?
Competition between species leads to ________.
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.'?
______ is the adaptation of an organism i which it matches its colour with its surroundings to get protected from predators.
Identify the morphological means of defence to avoid herbivores shown by plants.
Identify the interspecific interaction depicted in the following figure.
Brood parasitism is best explained by the example of ____________.
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
Which of the following is NOT an example of mutualism?
Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.
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?
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 | ______ |
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.
Give one example for the following:
A parasitic angiosperm
Between which among the following, the relationship is not an example of
?
Select the statement which best describes parasitism.
