Question:

Gause's principle of competitive exclusion states that -

Updated On: May 23, 2024

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

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The Correct Option is B

Gause's competitive exclusion principle starts that no two species can occupy the same niche indefinitely in a habitat

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	List I		List II
A	Logistic growth	I	Unlimited resource availability condition
B	Exponential growth	II	Limited resource availability condition
C	Expanding age pyramid	III	The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups
D	Stable age pyramid	IV	The percent individuals of pre-reproductives and reproductive age group are same

Match List I with List II.

	List I (Interacting species)		List II (Name of interaction)
A	Leopard and a Lion in a forest/grassland	I	Competition
B	A Cuckoo laying egg in a Crow’s nest	II	Brood parasitism
C	Fungi and root of a higher plant in Mycorrhizae	III	Mutualism
D	A cattle egret and a Cattle in a field	IV	Commensalism

Choose the correct answer from the options given below

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List I		List II
A	Two or more alternative forms of a gene	I	Back cross
B	Cross of F₁progeny with homozygous recessive parent	II	Ploidy
C	Cross of F progeny with any of the parents	III	Allele
D	Number of chromosome sets in plant	IV	Test cross

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