Advertisements
Advertisements
प्रश्न
What is mycorrhiza?
Advertisements
उत्तर
Mycorhiza is a symbiotic association between a fungus and the roots of higher plants.
संबंधित प्रश्न
Name important defence mechanisms in plants against herbivory.
Name and explain the interaction that is seen between clownfish and sea anemones.
Association between sea anemone and Hermit crab in gastropod shell is that of.
Give one example of interspecific competition.
Name the type of association: Crow feeding the hatchling of Koel
What is the ecological process behind the biological control method of managing pest insects?
Define the following term:
Camouflage
Community is defined as ______.
What is population ecology?
What is ESS?
Define mutualism.
What is population interaction? Explain the interactions in Mutualism and Competition.
Define the following term:
Parasitism
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 type of negative interaction.
Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.
Which one of the following is NOT an example of commensalism?
Which one of the following is NOT an example of mutualism?
A protozoan living in the digestive tract of a flea that lives on a dog is an example of ______
A population has more young individuals compared to the older individuals. What would be the status of the population after some years?
What is brood parasitism? Explain with the help of an example.
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 | ______ |
Give one example for the following type.
Chemical defense agent
Pick out the appropriate association representing brood parasitism.
Sea Anemone gets attached to the surface of the hermit crab. The kind of population interaction exhibited in this case is ______.
Mention the scientific name of protozoan parasite that causes Amoebiasis.
Some orchids live on the branches of mango trees. Name the type of interaction that exists between the mango tree and the orchid.
Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below:
Parasitism is an interaction between two organisms in which ______.
