Even trained biologists have difficulty telling females of Drosophila melanogaster and D.sechellia apart, yet these species are reproductively isolated.Thus, these species are considered _______ species.
A) lineage
B) morphological
C) cryptic
D) Darwinian
E) sympatric

Question

Quizplus · Accepted Answer

The fact that trained biologists have difficulty telling females of Drosophila melanogaster and D.sechellia apart, despite the species being reproductively isolated, suggests that they are cryptic species. This means that they are difficult to distinguish based on morphological features alone, and may require additional information such as DNA analysis to fully distinguish them.

Even Trained Biologists Have Difficulty Telling Females of Drosophila Melanogaster