21. Which of the following statements are true with respect to ‘Niche’?
i) It is the functional role of a species in an ecosystem.
ii) No two species have identical niches.
Options:

a) i only

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b) ii only

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c) Both i and ii

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d) Neither i nor ii

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Solution

The correct option is C c) Both i and ii

C)
Explanation:

An ecological niche is the role and position a species has in its environment; how it meets its needs for food and shelter, how it survives, and how it reproduces. A species' niche includes all of its interactions with the biotic and abiotic factors of its environment.

No two species have identical niches. If two species with identical niches i.e., ecological roles. compete, then one will inevitably drive the other to extinction

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Q3 Consider the following definitions of Eco tone, Ecological niche and Ecological foot print.

i) Eco tone is a zone of junction between two or more diverse ecosystems.

ii) An ecological niche is the role and position a species has in its environment.

iii) An ecological footprint is a measure of human impact on Earth's ecosystems

Which of the above statements is/are correct?

Consider the following statements:

1. A niche is unique for a species while many species share the habitat.

2. No two species in a habitat can have the same niche.

Which of the above statement(s) is/are correct?

निम्नलिखित कथनों पर विचार करें:

1. निकेत (niche) एक प्रजाति के लिए अद्वितीय होते हैं जबकि कई प्रजातियां निवास स्थान साझा करती हैं।

2. निकेत (niche) में कोई भी दो प्रजातियां समान नहीं हो सकती हैं।

उपरोक्त कथन में सा/से कौन सा/से सही है/हैं?

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