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Seleção natural em ação

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    Sebastian Silvestor P.
    ZA
    Sebastian Silvestor P.

    To everyone experiencing the issue of a task not being shown after it has been completed(turning green and affecting your progress score - thus allowing you to complete the course and acquire certification), have you considered contacting Alison's Support Team? I'm having the same issue and have contacted them regarding this as they have previously heard and attended to the issues I was having previously. In future, please send an e-mail to [email protected] to reach their Support Team and I'm sure that these issues will be resolved in a more timely manner.

    Hansarandi A.
    LK
    Hansarandi A.

    olease answer us

    Kedrick C.
    US
    Kedrick C.

    The current 13 species of Galapagos finches all descended from a common ancestor There are examples of natural selection in action. One of the classic examples is the change in phenotype of the peppered moth Biston betularia (see any text for details). During the industrial revolution in Britain, the buildings and woods became coated in black soot. The light coloured moths became easy prey but any darker mutants were better camouflaged and survived to pass on their genes for dark colour (melanin production) to their offspring. The gene for dark colour increased in frequency over successive generations. When controls were exercised over emission of pollutants in the 1950s, the dark coloured moths were less well camouflaged in the cleaner surroundings and they were preyed on (selected against). The frequency of the lighter coloured moths increased.

    Camille H.
    US
    Camille H.

    Why is it not turning green when I complete this task?

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