Statemet (S): Species are groups of potentially interbreeding natural populations that are isolated from other such groups
Reason (R): Reproductive isolation brings about distinctive morphological characters

Assertion : Species are groups of potentially interbreeding natural populations which are isolated from other such groups. Reason : Distinctive morphological characters are displayed due to reproductive isolation.

Assertion : Species are groups of potentially interbreeding natural populations which are isolated from other such groups. Reason : Distinctive morphological characters are displayed due to reproductive isolation.

A species was defined as a population of interbreeding individuals and reproductively isolated from other population by

Assertion : Grographical isolation brings about sympatric speciation. Reason : Reproductive isolation brings about allopatric speciation.

A species was defined as a population of interbreeding inviduals and reproductively isolated from other populations by

A species was defined as a population of interbreeding inviduals and reproductively isolated from other populations by

A species was defined as a population of interbreeding inviduals and reproductively isolated from other populations by

A sepcies is defined as " the group of actually or potentially inter - breeding natural population producing fertile offsping and reproductively isolated fron such other group."The above statement is given by

Sexually interbreeding or potentially interbreeding group of individuals which is reproductively isolated from the other species is