The changes in the rock pocket mice population explored in class is a result of natural election. Evolution by natural selection is a process first described by two scientists, Charles Darwin and his contemporary Alfred Russel Wallace. Natural selection is the rocess by which organisms that are better adapted to their environment tend to urvive and reproduce more offspring that have similar traits. Over time, natural election can lead to changes in populations. All the diversity on earth that we can ee today is ultimately due to populations changing over time due to natural selection. n the pocket mice, we saw that the mice population had natural variation in their fur olor. These variations arise from mutations (changes in DNA sequences) in sex cells eggs and sperm). These variations are found in some individuals, and not others ecause of sexual reproduction. In other words, sexual reproduction generates eggs nd sperm that contain a variety of possible traits. Humans, as a population, alsc ave variations. Look around at your classmates. Some variations we can easily see air color is an example. However, many of the differences between people are trait: nat we cannot see. For example, some people make an enzyme, lactase, as a dult. These people are able to easily digest lactose, the sugar found in milk. Othe eople do not produce this variation; they are lactose-intolerant and cannot easil igest milk. Another example is blood type. Humans have different blood types, b nis trait is not visible just by looking at someone. Scientists have been studying variations in the immune systems of differe opulations of people in order to try to determine its role in survival during the Bla Plague. Geneticists have found that there are differences in immune system gen. section of DNA that determine a trait) between populations of people who uncestors were exposed to the Black Death in Europe, and those that were exposed (such as people from China and Africa). Many of the surviving people fre Europe do have a set of genes that provide partial to full immunity to Yersinia pes he bacteria that caused the Black Plague. People whose ancestors are from China and Africa generally lack these gem Therefore, there may have been some people living in Europe during the Black De igh to have variations in their immune systems that gave th
The changes in the rock pocket mice population explored in class is a result of natural election. Evolution by natural selection is a process first described by two scientists, Charles Darwin and his contemporary Alfred Russel Wallace. Natural selection is the rocess by which organisms that are better adapted to their environment tend to urvive and reproduce more offspring that have similar traits. Over time, natural election can lead to changes in populations. All the diversity on earth that we can ee today is ultimately due to populations changing over time due to natural selection. n the pocket mice, we saw that the mice population had natural variation in their fur olor. These variations arise from mutations (changes in DNA sequences) in sex cells eggs and sperm). These variations are found in some individuals, and not others ecause of sexual reproduction. In other words, sexual reproduction generates eggs nd sperm that contain a variety of possible traits. Humans, as a population, alsc ave variations. Look around at your classmates. Some variations we can easily see air color is an example. However, many of the differences between people are trait: nat we cannot see. For example, some people make an enzyme, lactase, as a dult. These people are able to easily digest lactose, the sugar found in milk. Othe eople do not produce this variation; they are lactose-intolerant and cannot easil igest milk. Another example is blood type. Humans have different blood types, b nis trait is not visible just by looking at someone. Scientists have been studying variations in the immune systems of differe opulations of people in order to try to determine its role in survival during the Bla Plague. Geneticists have found that there are differences in immune system gen. section of DNA that determine a trait) between populations of people who uncestors were exposed to the Black Death in Europe, and those that were exposed (such as people from China and Africa). Many of the surviving people fre Europe do have a set of genes that provide partial to full immunity to Yersinia pes he bacteria that caused the Black Plague. People whose ancestors are from China and Africa generally lack these gem Therefore, there may have been some people living in Europe during the Black De igh to have variations in their immune systems that gave th
Medical Terminology for Health Professions, Spiral bound Version (MindTap Course List)
8th Edition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Chapter10: The Nervous System And Mental Health
Section: Chapter Questions
Problem 29LE
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USIBG EVIDENCE FROM THE TEXT, how did natural selection determine the survival of medeival humans during the black death(bubonic plague)?
Use the words: variation, natural selection, favorable traits
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