Does mutation that causes the insect color to change helpful, harmful, or neutral for the insect? Kindly explain.
if a population is already well-adapted to its environment, will most mutations be helpful or harmful? pls discuss
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If an insect which is already well-adapted to its environment is born with a mutation that affects its color, for the environment it is already in, it may be a disadvantage. However, nature is not static--on the contrary, it is ever-changing. Whatever the color change is could present an advantage, a disadvantage, or have no effect at all. However, if the environment should change due to pollution, deforestation, or any other phenomena, this mutation could prove valuable for survival. Thus, a small number of individuals could be "fit" in the new environment, and might live and reproduce--possibly passing the mutation to more individuals. Or, the insect with the mutation may die out as it may be seen easily by predators. The fact that DNA can change is what leads to evolution and changes over time.
Mutations are what allows natural selection to happen. So basically what happens when a creature experiences a mutation is that something happens to them, which can be good or bad. For example it could mutate to be born without a major organ so it would die, or it could mutate to have a better sense of hearing so it would survive.
This is basically what natural selection is, the animals who have mutated in a way that gives them an advantage are more likely to live.
Now your question, well I'm assuming that 'well-adapted' means that there is no way of improving its chance as a species. Therefore mutations would generally be bad. The species is already well-adapted, so positive mutations don't do much. On the other hand negative mutations can still cause damage.
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