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What is an example of micro evolution in organisms?
An example of microevolution in organisms is the development of antibiotic resistance in bacteria. Through repeated exposure to antibiotics, bacteria may develop genetic mutations that confer resistance to the drug, allowing those bacteria to survive and reproduce, leading to the evolution of a population that is no longer susceptible to the antibiotic.
What is an example of direct evidence for evolution is... genetic changes in plants antibiotic resistance in bacteria pesticide resistance in insects or all of the above?
All of the above examples are direct evidence for evolution. Genetic changes in plants, antibiotic resistance in bacteria, and pesticide resistance in insects all demonstrate how species can adapt and evolve to survive in changing environments. This supports the theory of evolution by natural selection.
What does fertile offspring mean?
Fertile offspring are offspring of parents which can continue to reproduce (for example Humans). However you can also get infertile offspring which cannot reproduce (an example of this is a mule, but it is not always the case.
What biological agents may be susceptible to antibiotics but can develop resistance?
These are the bacteria.Bacteria are (usually) single-celled microorganisms consisting of cytoplasm surrounded by a cell wall. They contain genes, but these are not in a nucleus separated from the cytoplasm as is the case in many other organisms eg animals and plants.Bacteria may be killed by antibiotics but can develop resistance to the anitbiotic. This ocurs when antibiotics are used unnecessarily or a course of tablets is not finished. Any individual bacterial cells which can resist the antibiotic will survive and reproduce, passing ion the genes for resistance to their offspring. The resistant individuals will therefore become more common. This is an example of how natural selection works.See http://en.wikipedia.org/wiki/Antibiotic_resistance
What is an explanation of how antibiotic resistance occurs?
Bacterial resistances are developed due to mutations that are passed down from generations of bacteria. Antibiotics generally kill all but the strongest bacteria or bacteria that have resistances to these antibiotics, resulting in only these bacteria reproducing, passing on the antibiotic resistances to future generations. Over time, entire populations of bacteria can develop a resistance to an antibiotic if they are frequently exposed to it. Bacterial resistances are developed due to mutations that are passed down from generations of bacteria. Antibiotics generally kill all but the strongest bacteria or bacteria that have resistances to these antibiotics, resulting in only these bacteria reproducing, passing on the antibiotic resistances to future generations. Over time, entire populations of bacteria can develop a resistance to an antibiotic if they are frequently exposed to it. Bacterial resistances are developed due to mutations that are passed down from generations of bacteria. Antibiotics generally kill all but the strongest bacteria or bacteria that have resistances to these antibiotics, resulting in only these bacteria reproducing, passing on the antibiotic resistances to future generations. Over time, entire populations of bacteria can develop a resistance to an antibiotic if they are frequently exposed to it.
What is a world example of evolution?
The development of resistance to antibiotics by bacteria is a real world example of evolution.
What is an example of micro evolution in organisms?
An example of microevolution in organisms is the development of antibiotic resistance in bacteria. Through repeated exposure to antibiotics, bacteria may develop genetic mutations that confer resistance to the drug, allowing those bacteria to survive and reproduce, leading to the evolution of a population that is no longer susceptible to the antibiotic.
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.
Is and example of inherent resistance?
One example of inherent resistance is antibiotic resistance in bacteria. Some bacteria naturally possess genes that allow them to survive exposure to certain antibiotics, reducing the effectiveness of those drugs in treating infections. This inherent resistance can make it challenging to treat bacterial infections and necessitates the development of new antibiotics.
How can bacteria be helpful to us?
some bacteria can be used in medicine and some can be used in certain foods, for example, bleu cheese dressing has mold in it (thats why the cheese is blue)
What is an example of direct evidence for evolution is... genetic changes in plants antibiotic resistance in bacteria pesticide resistance in insects or all of the above?
All of the above examples are direct evidence for evolution. Genetic changes in plants, antibiotic resistance in bacteria, and pesticide resistance in insects all demonstrate how species can adapt and evolve to survive in changing environments. This supports the theory of evolution by natural selection.
Why does not finishing an antibiotic contribute to antibiotic resistance?
When you take antibiotics, you start killing the bacteria in your body. The first ones to die are the ones that are mostly easily killed by the drug. Bacteria are very variable, however, so some of the bacteria in your body will be more able to resist the drug. For example, they might have an enzyme that gives them some protection from the drug. If you take all of your prescription, you might eventually overwhelm even these slightly resistant bacteria, killing them. If you stop taking your antibiotics early, however, the more resistant bacteria may survive. When they reproduce, they pass their resistance along to their offspring. As bacteria reproduce, more changes occur in their DNA so slightly resistant bacteria can become even more resistant. So, not finishing your antibiotic increases the chances of letting resistant bacteria survive to reproduce and make resistant offspring, that may become even more resistant with time.
What is an example of micro-evolution?
An example of micro-evolution is the development of antibiotic resistance in bacteria due to natural selection. When exposed to antibiotics, bacteria with genetic mutations that provide resistance to the drug survive and reproduce, passing on the resistant trait to future generations. Over time, the proportion of resistant bacteria in the population increases, leading to the evolution of antibiotic-resistant strains.
How is antibiotic resistance bacteria an example of natural selection?
When a population of bacteria is bombarded with antibiotics, the 'weak' ones will die. The ones with some resistance built in will survive, and divide to form a new population of copies of themselves, or a resistant population. This in itself is survival of the fittest in a very pure form.
What does fertile offspring mean?
Fertile offspring are offspring of parents which can continue to reproduce (for example Humans). However you can also get infertile offspring which cannot reproduce (an example of this is a mule, but it is not always the case.
What is evolution and can you provide an example to explain the term?
Evolution is the process by which living organisms change and adapt over time through natural selection. An example of evolution is the development of antibiotic resistance in bacteria. When exposed to antibiotics, only the bacteria with genetic mutations that make them resistant survive and reproduce, leading to a population of bacteria that is mostly resistant to the antibiotic.
What is an example of micro evolution?
You are an example of human micro-evolution as the population of humans has changed allele frequency over time. Micro-evolution is just evolution; change over time.
