Question

Why is it important for species to have variation?

Answer 1

Variation is important for any species because it allows the species to adapt to a changing environment. Also, the presence of diseases and parasites maintains variation in a species, particularly those associated with blood groups.

Answer 2

Variation is important for any species because it allows the species to adapt to a changing environment. ... So a species could move poleward, or to higher altitudes. When that does not work variations help individuals survive in harsher conditions, and adapt to the changes.