This is the importance of species diversity

The correct option is: "species interacts with its environment and hence performs some functions"

Explanation:

Species diversity is crucial for the health and stability of an ecosystem. Each species plays a unique role, often referred to as its ecological niche. By interacting with the abiotic (non-living) and biotic (living) components of their environment, species perform essential ecological functions. These functions include nutrient cycling, energy flow, pollination, soil formation, and pest control.

Let's analyze why this option is correct and why the others are incorrect:

1. Species interacts with its environment and hence performs some functions: This is correct because the functional role of a species (such as producing oxygen, decomposing organic matter, or acting as a food source) is realized only through its continuous interaction with the surrounding environment. Higher species diversity ensures that multiple species can perform these functions, making the ecosystem more resilient to disturbances.

2. Species never interact with the environment: This is incorrect because all living organisms must interact with their environment to survive, obtain energy, and reproduce.

3. Species minimize interaction with its environment and hence performs certain functions: This is incorrect because species do not actively minimize interaction; their survival and functions depend entirely on active exchange and relationships within the ecosystem.

4. Species does not perform functions though it interacts with the environment: This is incorrect because the very acts of survival (like feeding, excreting, and moving) directly result in ecological functions that support the ecosystem.