Suppose that a group of male pied flycatchers migrated from a region where there were no collared flycatchers to a region where both species were present. Assuming events like this are very rare, which of the following scenarios is LEAST likely?
A) Migrant pied males would produce fewer offspring than would resident pied males.
B) Pied females would rarely mate with collared males.
C) Migrant males would mate with collared females more often than with pied females.
D) The frequency of hybrid offspring would decrease.
D
You might also like to view...
The absence of atmospheric oxygen probably made life possible because oxygen ________
a. forms free radicals that degrade compounds by extracting electrons from their bonds b. would have favored the development of early predators and suppressed life's first efforts c. is a greenhouse gas that would have made the Earth too hot for life d. prevents the formation of liquid water
What important structure uses lenticels to communicate with the atmosphere in mangroves?
a. Pneumatophores b. Aerenchyme c. Chromatophores d. Nutritive roots
Archaea differ from bacteria in that they
A. have a nucleus. B. have membrane-bound organelles. C. have peptidoglycan in their cell walls. D. are often photosynthetic. E. None of these are correct.
The process of manufacturing RNA from template DNA is
A. transcription. B. replication. C. translation. D. protein synthesis.