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ayeheavymetal
24.04.2021 •
Biology
A mystery emerged in Britain during the 1800s. An Industrial Revolution had just taken hold. Busy factories started to darken the skies with smoke from burning wood and coal. The sooty pollution blackened tree trunks. In short order, Victorian scientists took note of a change, too, among peppered moths (Biston betularia). A new, all-black form emerged. It came to be called B. betularia carbonaria, or the “charcoal” version. The older form became typica, or the typical form.
Birds had been able to easily spot the old-style, lightly colored peppered moths as they settled onto soot-blackened tree trunks. Their new dark cousins instead blended in. The result: those carbonaria were less likely to be eaten.
Not surprisingly, numbers of light-colored moths started to fall as their dark cousins increased. By 1970, in some polluted regions nearly 99 percent of peppered moths were now black.
Source
Which of these most likely led to the emergence of the all-black “charcoal” form of the peppered moth?
A asexual reproduction
B adaptation
C mutation
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Ответ:
The digestive system breaks down the food into molecules. The cells then convert those molecules into a form of energy they can use. So how do plants and animals convert those food molecules into a form of energy they can use? Through a chemical process called cellular respiration.
Explanation:
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