Discontinuous variation is unlikely to lead to new species because
A) quick changes are never found in the fossil record.
B) complex adaptations are unlikely to occur in a single jump.
C) selection cannot act on discontinuous variation.
D) it allows for only small incremental changes.

Question

Quizplus · Accepted Answer

Complex adaptations are unlikely to occur in a single jump through discontinuous variation. It is more likely that small incremental changes, through continuous variation, would lead to adaptations and eventually new species. Quick changes are also unlikely to be found in the fossil record and selection can still act on discontinuous variation, but it is less likely to lead to new species. Therefore, discontinuous variation is not the most viable route for speciation.

Discontinuous Variation Is Unlikely to Lead to New Species Because