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प्रश्न
Define the following term:
Commensalism
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उत्तर
An interaction in which one species benefits while the other is neither benefited nor harmed is called commensalism.
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संबंधित प्रश्न
What is mutualism?
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.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Association between sea anemone and Hermit crab in gastropod shell is that of.
Select the statement which explains the best parasitism.
Give one example of Interspecific competition.
Define Population.
Define Absolute Mortality.
What is Mortality? What are its two types?
The interaction in nature, where one gets to benefit on the expense of other is _________.
Identify the interspecific interaction in which species A is harmed and species B is unaffected.
Mutualism can be represented as the interaction between ____________.
The correct description for the interspecific interaction shown in the given figure is ______
Parasitism can be conectly represented as ____________.
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 |
Which one of the following is an example of predation?
Which one of the following is NOT an example of commensalism?
Which one of the following is NOT an example of mutualism?
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?
Amensalism can be represented as ______
A population has more young individuals compared to the older individuals. What would be the status of the population after some years?
Define stenohaline species.
What is the interaction between two species called?
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.
Give one example for the following type.
Camouflaged animal
Give one example for the following type.
Biological control 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) |
Give one example for the following:
A parasitic angiosperm
Sea Anemone gets attached to the surface of the hermit crab. The kind of population interaction exhibited in this case is ______.
Between which among the following, the relationship is not an example of
?
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
What are the special adaptations that endoparasites show?
Explain one type of mutualism.
