LIFE SCIENCE

Detailed explanation-1: -In ecology, the term “niche” describes the role an organism plays in a community. A species’ niche encompasses both the physical and environmental conditions it requires (like temperature or terrain) and the interactions it has with other species (like predation or competition).

Detailed explanation-2: -The three main ecosystem roles an organism can occupy are producers, consumers, and decomposers. Producers can synthesize sugars for energy from an abiotic source in processes such as the following.

Detailed explanation-3: -The correct option is 1 i.e. specific habitat of the organism. The ecological niche of an organism relates to the specific habitat of the organism.