Question

A true species consists of a population which is?

• A. Sharing the same niche
• B. Interbreeding
• C. Feeding over the same food
• D. Geographically isolated

Answer 1

Answer: (B)

Interbreeding

As per the definition given by Ernst Mayr in $1964$: "A species is a group of actually or potentially inbreeding populations that are reproductively isolated from other such groups."
A species may have subgroups, called subspecies or varieties, showing certain distinct features of their own.