Species of fruit fly larvae in the genus Rhagoletis each feed on a particular kind of fruit. Rhagoletis pomonella feeds on the small red fruit of the hawthorn tree. In 1865, farmers in the Hudson River valley found that R. pomonella flies had begun attacking their apples and then spread to apple orchards in adjacent areas of Massachusetts and Connecticut. These now separate varieties of flies, the apple and haw flies, usually don't interbreed with each other because their periods of mating coincide with the different ripening times of apples and hawthorn fruit. Each variety is becoming specialized to feed and reproduce in its own particular microhabitat and may be transitioning to separate species. If the apple and haw flies become distinct enough to be separate species, their evolution is an example of .
a. allopatric speciation
b. behavioral isolation
c. gametic isolation
d. sympatric speciation
Answers: 3
Biology, 22.06.2019 04:00
The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons
Answers: 1
Biology, 22.06.2019 06:20
All organisms contribute some water to the water cycle by conducting
Answers: 1
Biology, 22.06.2019 15:00
First described the system of fingerprint ridges and spirals, which eventually were used for fingerprinting. a.) fare and fidelis’s pathology b.) dr. calvin goddard c.) hans gross d.) marcelo malpighi e.) leeuvenhoek’s microscope
Answers: 1
Biology, 22.06.2019 15:00
Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources
Answers: 3
Species of fruit fly larvae in the genus Rhagoletis each feed on a particular kind of fruit. Rhagole...
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
German, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Mathematics, 20.05.2021 18:30
Health, 20.05.2021 18:30
Social Studies, 20.05.2021 18:30
SAT, 20.05.2021 18:30