Question

Which factor is most likely to contribute to the evolution of a species?

a stable environment in which members of the species live
genetic variation within the species
the inability of species members to adapt
reproduction difficulties for species members

Answer 1

The most likely factor contributing to the evolution of a species is genetic variation within the species. Genetic variation provides the potential for natural selection and evolutionary change to occur, as it allows different organisms to adapt to changing environmental conditions in order to survive and thrive.

Answer 2

Genetic variation within the species!