Two populations are not yet reproductively isolated if interbreeding results in

If internal barriers to gene flow do not evolve, individuals from the two parts of the population will freely interbreed if they ... They result from natural selection, sexual selection, or even genetic drift: ... Genetically-based changes to these aspects of mating could complete the process of reproductive isolation and speciation.

Explanation:

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."