With reference to ecological niche which of the following statements is/are correct?1.It represents the range of conditions that it can tolerate the resources it utilizes and its functions role in ecological systems.2.Each species has a distinct niche.Select the correct answer from the code given below:

1. A

   Neither 1 nor 2

   Option (a) claims that neither statement 1 nor statement 2 is correct regarding an ecological niche. This option is incorrect because both statements correctly describe fundamental attributes of an ecological niche in ecology.

2. B

   Both 1 and 2

   Option (b) claims that both statement 1 and statement 2 are correct. Statement 1 accurately defines the niche as the range of conditions tolerated, resources utilized, and functional role in ecological systems, while statement 2 correctly asserts that no two species have exact identical niches due to competitive exclusion. This is the correct option and is appropriately detailed to reflect comprehensive ecological principles.

3. C

   Only 2

   Option (c) claims that only statement 2 is correct, ignoring the validity of statement 1. Statement 1 is equally valid as it encompasses the tolerance limits and functional role of a species.

4. D

   Only 1

   Option (d) claims that only statement 1 is correct, ignoring statement 2. Statement 2 is also correct because two species cannot occupy the exact same niche indefinitely in the same habitat.

Summary. Official key is (b) Both 1 and 2. The question tests fundamental concepts related to the ecological niche of species in an ecosystem. Statement 1 is correct because a niche defines the environmental conditions tolerated, resources used, and functional role. Statement 2 is correct because each species occupies a distinct, unique niche to avoid direct competition. Therefore, both given statements are entirely correct.