Different species of fruit flies occupy each of the islands in the hawaiian island chain, a group of volcanic islands that formed one after the other. one hypothesis for how the different fruit fly species formed is that, after each new island was formed, fruit flies from existing islands colonized it and subsequently diverged. if this hypothesis is correct, it would be an example of: allopatric speciation by dispersal. sympatric speciation by dispersal. sympatric speciation by vicariance. peripatric speciation by vicariance. allopatric speciation by vicariance.

allopatric speciation by dispersal

Explanation:

Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations  reach a high level  of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

One of the factors that contribute to the allopatric speciation is dispersal.

New populations evolve as result of mutation, genetic drift and natural selection.

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.