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Exposure of a population to a toxin that kills a high percentage of the population selectively eliminates those individuals most susceptible to the toxin. This leaves the most resistant individuals to reproduce individuals that are also resistant. After many generations of this selection the whole population is resistant.

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What is the example of a microevolution?

An example of microevolution is the development of antibiotic resistance in bacteria due to natural selection. Over time, bacteria that are resistant to antibiotics survive and reproduce, leading to a population of bacteria that is predominantly resistant to that antibiotic.


What does natural selection have to do with biodiversity?

Natural selection is the mechanism primarily responsible for the development of today's biodiversity.


Why is bacteria the effects of natural selection are generally seen most quickly in the organism?

Bacteria is the answer


Explain how the process of natural selection results in populations of bacteria that are not harmed by antibiotics?

The process of natural selection results in populations of bacteria that are not harmed by antibiotics because bacteria that are born with mutations that make them immune to antibiotics will be the ones to survive and reproduce.


What are the causes of the appearance of modern man?

Natural development and selection.


Which of the following resulted from a genetic variation that was favored by natural selection?

The development of antibiotic resistance in bacteria is a result of genetic variation that was favored by natural selection. Bacteria that had a mutation making them resistant to antibiotics were able to survive and reproduce, passing on this trait to future generations. Over time, this led to the prevalence of antibiotic-resistant strains in bacterial populations.


Does natural selection deal with only plants?

No, all life evolves. Bacteria evolve, viruses evolve, protists evolve, plants evolve, fungi evolve and animals evolve. Evolution is driven by Natural Selection. So, no. The evolution of all life on Earth is driven by Natural Selection: all bacteria, plants, animals, mammals, fish, insects, biochemical pathways, behaviours et cetera evolve by Natural Selection.


Increased resistance in bacteria after repeated exposure to antibiotics is due to?

mutations that allow the bacteria to survive the antibiotic's effects, leading to the selection of resistant bacterial strains. These resistant strains can then replicate and spread, making subsequent infections harder to treat. Additionally, the overuse and misuse of antibiotics can contribute to the development of antibiotic resistance.


Which of these processes led to the development of different ear sizes in foxes?

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What was Charles Darwin's contribution to science?

his development in science is that he created the natural selection


What is evolution and can you provide an example to explain the term?

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