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

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

The great variety of breeds of cats, dogs and other domestic animals have arisen through Blank______.Multiple choice question.artificial selectionnatural selectionrandom genetic changes

Multiple Choice QuestionA species that exhibits early maturity, rapid growth, and many offspring is a(n) Blank______ species.Multiple choice question.r-selectedK-selectedclimaxpioneer

The odd proportions of dachshunds have resulted from Blank______.Multiple choice question.unintentional selectionartificial selection for dogs that could enter narrow badger holesan increased mutation rate in that dog breed