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Organisms And Populations

Question

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Gause's principle of competitive exclusion states that

Competition for the same resources excludes species having different food preferences

No two species can occupy the same niche indefinitely for the same limiting resources

Larger organisms exclude smaller ones through competition

More abundant species will exclude the less abundant species through competition

Solution

B.

No two species can occupy the same niche indefinitely for the same limiting resources

Gause's principle of competitive exclusion states that no species can occupy the same niche indefinitely for the same limiting resources.

Some More Questions From Organisms and Populations Chapter

In which of the following interaction both species are benefitted ?

Fill in the blanks with suitable words :

1. The optimal capacity of the organism to produce offspring is called........................

2. Rapid increase in human population is called........................

3. Mathematical expression of the growth of population is called........................

4. Yeast cells grown in a culture medium show........................growth curve.

5. Main cause of population explosion is........................

State true or false :

Coin one word for the following statements :
1.Organism that can tolerate only a narrow range of salinity.

2. Plants that can survive a wide range of temperature.

3. Interaction of two species in which one is benefited while other is neither benefited nor harmed.

4. Number of births during a given period in the population that are added to the initial density.

5. the process of maintaing a constant body temperature.

A few organisms can tolerate and thrive in a wide range of temperature, they are called........................

Majority of organisms are restricted to a narrow range of temperature, such organisms are called ........................

The organisms ideally try to maintain the constancy of its internal environment by the process called........................

Mammals from colder climates have shorter ears and limbs to minimize heat loss. This rule is called........................

The parasites that feed on external surface of host organisms are called ........................

The parasites that live inside the body at different sites (liver, kidney, lungs, RBC etc.) are called........................

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