Evolutionary species concept is based on

• A) Distinct Lineage
• B) Unitary evolutionary tendencies
• C) Unitary evolutionary role
• D) All of the above

The evolutionary species concept is a way to define species based on their evolutionary history and characteristics. It emphasizes the importance of distinct lineages and their unique evolutionary paths.

Key Components of the Evolutionary Species Concept

• Distinct Lineage: Each species is seen as a separate lineage that has its own evolutionary trajectory.
• Unitary Evolutionary Tendencies: This refers to the idea that species exhibit specific evolutionary trends over time.
• Unitary Evolutionary Role: Each species plays a unique role in its ecosystem, contributing to biodiversity.

Given these aspects, the correct answer to your question is All of the above. Each component plays a vital role in defining what an evolutionary species is.