Experiments with fruit flies have shown that significant evolutionary change can be observed within Blank______.Multiple choice question.1-2 generations35-40 generationsno fewer than 100 generations

In the laboratory setting, selection for a trait in fruit flies Blank______.Multiple choice question.has had mixed responses (as predicted for some traits but not for others)has consistently lead to a strong, predictable evolutionary responsehas never achieved a consistent, predictable evolutionary response

In a classic experiment, scientists selected for fruit flies with many bristles on their abdomen by Blank______.Multiple choice question.picking out and breeding the 80% of the population that had the greatest number of bristlespicking out and breeding the 20% of the population that had the greatest number of bristles visually choosing and breeding flies that appeared to have relatively large bristles

Similar to humans, fruit flies Blank______.Multiple choice question.exhibit uniform levels of variation across their entire genomeexhibits much higher levels of variation in certain parts of their genomeexhibit very low levels of variation in their genome

According to some critics of evolution, natural selection can produce changes in a population, but it cannot cause substantial changes leading to Blank______.Multiple choice question.higher frequencies of the dark forms of the peppered moththe formation of an entirely new speciesthe formation of the different dog breedsdifferences between modern corn and its ancestor teosinte

How does artificial selection contradict the claim that selection can only produce minor evolutionary change?Multiple choice question.Artificial selection has produced many new species of plants and animals.Industrial melanism can be reversed within 20 generations.Variation in bristle numbers among different populations of artificially selected fruit flies does not overlap after about 35 generations.Differences between breeds can be larger than differences between different genera of animals or plants.