I am not 100% sure but I believe that because of increased manufacturing, the air got very polluted and this made many trees darker, like birch. So moths are usually lighter in color so many couldn’t really hide among trees and they were eaten. After some time, many moths mutated and also became darker to blend in when they were on trees to prevent being eaten by predators. In conclusion, the population decreased.
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Answer:
As organisms develop, it’s cells take on different forms by expressing different combinations of it’s genes.
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All cells except sex cells
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50% will have ears
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To have ears you must have the trait nn since the ears trait is recessive, 2 of the four possible offspring are like this, so 50%
Answer:
im pretty sure its C sorry if im wrong
:/
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