Advertisements
Advertisements
Question
Amensalism is an association between two species where ______.
Options
one species is harmed and other is benefitted
one species is harmed and other is unaffected
one species is benefitted and other is unaffected
both the species are harmed
Advertisements
Solution
Amensalism is an association between two species where one species is harmed and other is unaffected.
Explanation:
Amensalism is an interspecific association where one species suffers harm while the other species remains unaffected. This means that one species is negatively impacted, for example, by the release of toxic substances, while the other species does not benefit nor get harmed in any way. This is different from other types of species interactions, where both may benefit (mutualism) or one benefits while the other is harmed (parasitism) or unaffected (commensalism).
APPEARS IN
RELATED QUESTIONS
State Gause’s competitive exclusion principle.
What is the ecological principle behind the biological control method of managing with pest insects?
Give one example of mutualism.
Distinguish between the following: Parasitism and Mutualism.
Community is defined as ______.
In Logistic growth curve lag phase shows______.
The number of deaths under ideal conditions is known as ______.
Define Absolute Mortality.
Define Niche.
What is commensalism? Explain it with a suitable example.
The interaction in nature, where one gets to benefit on the expense of other is _________.
Define the following term:
Parasitism
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.'?
The interspecific interaction between Cuckoo and Crow is ______
Which of the following is TRUE for amensalism?
Identify the type of negative interaction.
Which one of the following is NOT an example of commensalism?
Mycorrhizae are the example of ______.
Rafflesia an arnoldii is an example of ______.
______ in birds is an interesting example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them.
There are two optional ways of exploitation one way is parasitism. Which is the other one ______.
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 | ______ |
Discuss the various types of positive interactions between species.
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 |
Observe the graph given below.
|
The graph represents inter-specific interaction between two species of Paramecia competing for the same resource in a culture medium. Paramecium caudatum and Paramecium aurelia were grown in separate cultures as well as in mixed cultures. It was found that each species grew in numbers according to the logistic equation.
|
a) Which species is competitively superior? Support it with the data provided in the graph.
b) State the underlying principle for the above result and name the scientist associated with this principle.
c) Explain the mechanism in which two or more species competing with each other can co-exist.
OR
Graphs A and B shown below depict interaction of two species. Which graph indicates Mutualism? Give reason.
 |
 |
| A | B |
In which interaction of species, both the species are at a loss?
Give one example of parasitism.
