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प्रश्न
What is Mortality? What are its two types?
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उत्तर
Definition: Mortality is the death rate of a population. The two types of mortality are
- Absolute Mortality: The number of deaths under ideal conditions (with no competition, abundance of resources such as food and water, etc.).
- Realized Mortality: The number of deaths when environmental pressures come into play
संबंधित प्रश्न
Define the following term:
Parasitism
The correct description for the interspecific interaction shown in the given figure is ______
What is the interaction between two species called?
What is commensalism?
Give one example for the following type.
Chemical defense agent
The interaction between cattle egret and the buffalo is ______.
Interaction between clown fish living among the stinging tentacles of sea anemone is an example of ______.
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
Observe the graph given below.
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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.
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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.
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| A | B |
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:
