EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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move to a place without green beetles
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decrease in population size until they possibly become extinct
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breed with green beetles to create an orange-green beetle
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adapt by turning green
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Detailed explanation-1: -In other words there is differential reproduction between the brown and green beetles. Over time the end result is that the population will come to be dominated by green beetles as heredity dictates the trait for green colour is passed on.
Detailed explanation-2: -Meaning that green beetles will survive to produce less offspring compared to the brown beetles; hence, there is differential reproduction. As a result, the surviving brown beetles produce more brown beetle offspring because this trait has a genetic basis and there is heredity involved over time.
Detailed explanation-3: -Brown beetles are a little more likely to survive to produce offspring. They pass their genes for brown coloration on to their offspring. So in the next generation, brown beetles are more common than in the previous generation.
Detailed explanation-4: -Natural selection in the beetle population is driven by the predator (crows) that prey on the red beetles. The green beetle population rises as they survive predation and reproduce. The natural selection of the green beetles over the red beetles causes evolution in the beetle population.