मराठी

State Gause’s competitive exclusion principle.

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प्रश्न

State Gause’s competitive exclusion principle.

अति संक्षिप्त उत्तर
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उत्तर

Gause’s competitive exclusion principle states that two closely related species competing for the same resources cannot co-exist indefinitely, and the competitively inferior species will be eliminated eventually.

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पाठ 13: Organisms and Populations - Test Your Progress [पृष्ठ ६११]

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नूतन Biology [English] Class 12 ISC
पाठ 13 Organisms and Populations
Test Your Progress | Q 31. | पृष्ठ ६११

व्हिडिओ ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्‍न

Write what do phytophagous insects feed on.


Define the following term:

Interspecific competition


Mention any two examples where the organisms involved are commercially exploited in agriculture.


Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.


What is the ecological process behind the biological control method of managing pest insects?


Define population.


The cattle egret and grazing cattle in close association is a classic example of ______.


Explain different population interactions with examples.


Differentiate between predator and prey.


Using '-' to depict inhibition and '+' to depict benefit, mutualism between two species can be represented as ____________.


Which one of the following is an example of predation?


______ 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.


What is commensalism?


What is mycorrhiza?


Give one example for the following type.

Camouflaged animal


The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.


Many copepods live on the body surface of marine fish. This relationship is an example of ______.


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

The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:

  1. Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
  2. Identify the infective stage labelled ‘D’.
  3. Name the structure labelled ‘A’ and ‘E’.
  4. Give any one symptom of malaria.

Give one example of commensalism.


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