Evolution: 10/1/17
Image:
Summary:
What is evolution? Evolution helps us understand the diversity and variety of life. Evolution is more than just change over time, it is descent with modification or any change in the gene pool within a population over multiple generations. The central idea of evolution is that all living things originated from one common ancestor. Evolution cannot occur over a single lifetime which is why if there is no reproduction there is no evolution. One way of evolution to occur is natural selection. Most people think natural selection is survival of the fittest, the strong survive and the weak die, but that is not the case. Natural selection means organisms who are best adapted to their environment survive. For example, a sea cucumber isn't fast or strong, but it is very well adapted to the sea floor so it would survive.
S&EP-Using Models:
A mutation is a random mishap in your DNA. It can change your physical appearance and the way you behave. Like I said, these are completely random so it could be beneficial, harmful, or mutual. To understand how mutations worked, we represented it through M&M's and Redhots. The M&M's represent the colored candius organism. After seeing the percentages of each color, we added 5 Redhots to represent a mutation that occurred. As we paired up the colors and watched them reproduce some slowly disappeared, like the red M&M's while others flourished such as the Redhots. This showed how a mutation could lead to evolution because that specific gene wasn't there before and it altered the gene pool. As well as that, as it "reproduced" the gene became more dominant, it went from 16% to 32%.
XCC- Cause and Effect:
The five fingers of evolution include small population, specific mating, mutations, gene flow, and natural selection. The small population or genetic drift can occur in two different ways. The founder effect is when a few people or organisms are isolated and form a new community. The genes of the community will represent the founders' genes, not the place they came from. As for the bottleneck effect, let's say an event occurs leaving only some of the population alive. The remaining people mate and slowly rebuild the population. The current population will represent the genes of the survivors, not the genes of the original group. Next, we have the selective mating. This is when people decide on a mate based on their appearance. If only blondes mate with blondes the frequency of blonde people will increase, while if no one mates with them the genes will disappear. Then, there are mutations which are when there is a mishap in your DNA code. Imagine someone had a mutation causing them to have purple skin, this would change the frequency of the gene pool. Also, there is gene flow. Gene flow or migration is when people from one area move to another and bring anew trait. This would change the gene pool, as well. Lastly, there is natural selection which is when the most adapted survive. This is when the organisms who are better adapted to their environment survive. For example, there are brown and green beetles. Since the brown can camouflage the green get eaten so there a now more brown. All f these factors contribute to evolution.
Multiplier:
This week I was a mutant, to be more specific a creator because I always offered help to my team while representing different forms of evolution.
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| https://www.youtube.com/watch?v=5NdMnlt2keE |
Summary:
What is evolution? Evolution helps us understand the diversity and variety of life. Evolution is more than just change over time, it is descent with modification or any change in the gene pool within a population over multiple generations. The central idea of evolution is that all living things originated from one common ancestor. Evolution cannot occur over a single lifetime which is why if there is no reproduction there is no evolution. One way of evolution to occur is natural selection. Most people think natural selection is survival of the fittest, the strong survive and the weak die, but that is not the case. Natural selection means organisms who are best adapted to their environment survive. For example, a sea cucumber isn't fast or strong, but it is very well adapted to the sea floor so it would survive.
S&EP-Using Models:
A mutation is a random mishap in your DNA. It can change your physical appearance and the way you behave. Like I said, these are completely random so it could be beneficial, harmful, or mutual. To understand how mutations worked, we represented it through M&M's and Redhots. The M&M's represent the colored candius organism. After seeing the percentages of each color, we added 5 Redhots to represent a mutation that occurred. As we paired up the colors and watched them reproduce some slowly disappeared, like the red M&M's while others flourished such as the Redhots. This showed how a mutation could lead to evolution because that specific gene wasn't there before and it altered the gene pool. As well as that, as it "reproduced" the gene became more dominant, it went from 16% to 32%.
XCC- Cause and Effect:
The five fingers of evolution include small population, specific mating, mutations, gene flow, and natural selection. The small population or genetic drift can occur in two different ways. The founder effect is when a few people or organisms are isolated and form a new community. The genes of the community will represent the founders' genes, not the place they came from. As for the bottleneck effect, let's say an event occurs leaving only some of the population alive. The remaining people mate and slowly rebuild the population. The current population will represent the genes of the survivors, not the genes of the original group. Next, we have the selective mating. This is when people decide on a mate based on their appearance. If only blondes mate with blondes the frequency of blonde people will increase, while if no one mates with them the genes will disappear. Then, there are mutations which are when there is a mishap in your DNA code. Imagine someone had a mutation causing them to have purple skin, this would change the frequency of the gene pool. Also, there is gene flow. Gene flow or migration is when people from one area move to another and bring anew trait. This would change the gene pool, as well. Lastly, there is natural selection which is when the most adapted survive. This is when the organisms who are better adapted to their environment survive. For example, there are brown and green beetles. Since the brown can camouflage the green get eaten so there a now more brown. All f these factors contribute to evolution.
Multiplier:
This week I was a mutant, to be more specific a creator because I always offered help to my team while representing different forms of evolution.
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