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- Directions: Perform the task below based on your understanding on the topic " Mechanisms 'of Evolutionary Change" . There are four factors that can change the allele frequencies of a population namely Natural Selection, Mutations, Genetic Drift and Gene Flow. Make a creative outline summarizing the processes happened in these mechanisms of evolutionary change (use separate sheet ifTHIS QUESTION WILL SHOW UP ON YOUR EXAM E: Let's talk about speciation! 1. What is the definition of a species? 2. Is the creation of a new species a type of micro-evolution or macro-evolution? 3. Describe 2 prezygotic barriers that can lead to speciation. For each barrier, include an example (these can be real or made up) and identify if this barrier is allopatric or sympatric.Explanation 2. Imagine you are a farmer researching the impact of GMFs. What is one advantage and one disadvantage that would be relevant to your work? Explain each. 3. What was the original purpose of Darwin's voyage on the H.M.S. Beagle, and what was the ultimate significance of the voyage? 4. Suggest two ways that a synthetic biologist can change the course of evolution. 5. Explain how natural selection and sexual selection can work together to cause the evolu- tion of large antlers on male moose.
- Name: Date: Galapagos Finch Evolution (HHMI Biointeractive) - https://voutu be/mcM23M-CCog ~16 minutes 1. What is the "mystery of mysteries? 2. The Grants' study on the island of Daphne Major studied what organisms? 3. Where did the 13 species of finches on the islands come from? 4. How did the Grants catch the finches? 5. What features did they measure? 6. What happened in 1977 to the island? 7. What type of birds were more likely to survive after this event? 8. After the El Nino event in 1983, which birds were more likely to survive? 9. What keeps different species from mating on the Galapagos islands? 10. The most likely scenario explaining the different finches on the islands is that: a) different birds migrated to different islands b) one species evolved into many different species 11. Examine the graph below. Summarize what happened to the finch population between 1976 and 1978. 30 1976 Offspring 25- 20- 15- 10- 5- 7.3 7.8 8.3 8.8 9.3 9.8 10.3 10.8 11.3 40 1978 Offspring 30- 20-…Directions: Write ADAPT if the statement is under the principle of Jean Baptiste de Lamarck and EVOLVE if the statement is under the principle of Charles Darwin. 1. Species may experience extinction if they are not fitted to live in their environment. 2. Species, which become extinct, just experienced evolution to fit in their environment. 3. Once a trait is developed due to adaptation in environment, it may be passed to succeeding oripnisms. 4. Habitual actions with a specific body part may lead to its changes. 5. Body parts that are of no use but still present in an organism's body are evidence for its ancestor species. 6. Animals with the same body part may have modifications depending on its physical requir. ements. 7. Changes happen in an organism for a long and uniform process. 8. A body part that is no longer used by an organism may lag from its development. 9. Birds grew web-like structure on their feet to be able to feed on the surface of water. 10. Ancestral…POST QUIZ: Write true if the statement is true or false if the statement is false. 1. As recently as 200 years ago, many people believed that Earth was only 6,000 years old 2. Artificial selection occurs when nature selects for beneficial traits. 3. The individual Galápagos Islands are all similar to each other. 4. Malthus argued that human populations grow faster than their resources. 5. Lamarck was one of the first scientists to propose that species evolve by natural selectio 6. Lyell was one of the first to say that Earth must be far older than most people believed. 7. Lamarck's inheritance of acquired characteristics is has become a widely accepted scien heory. 8. Fossils proved to Darwin that species can evolve. 9. The term fitness to refer to an organism's ability to outrun its hunters. 10. Darwin published his findings soon after returning to England from the voyage of the Be 11. According to Darwin, natural selection is what occurs, and evolution is how it happens 12. During…
- Write true if the statement is true or false if the statement is false. 1. As recently as 200 years ago, many people believed that Earth was only 6,000 years old. 2. Artificial selection occurs when nature selects for beneficial traits. 3. The individual Galápagos Islands are all similar to each other. 4. Malthus argued that human populations grow faster than their resources. 5. Lamarck was one of the first scientists to propose that species evolve by natural selection. 6. Lyell was one of the first to say that Earth must be far older than most people believed. 7. Lamarck's inheritance of acquired characteristics is has become a widely accepted scientific theory. 8. Fossils proved to Darwin that species can evolve. 9. The term fitness to refer to an organism's ability to outrun its hunters. 10. Darwin published his findings soon after returning to England from the voyage of the Beagle. 11. According to Darwin, natural selection is what occurs, and evolution is how it happens. 12.…1. List the major contributors to modern biology concepts in your own words, briefly describe their work. 2. explain and briefly describe geological time scale. How does it relate to the signs of biology? 3. List and briefly describe in your own words the four main points of Darwins theory? 4. does the theory of natural selection conflict with environmental issues? Why or why not? Explain. 5. what is the importance of the use of Latin in science? How else do we use Latin today?READ THIS: Notice that natural selection does not refer to individuals changing. Kath Trequency of adaptive heritable traits in a population changes as a result of natural selection. REQUIREMENTS FOR NATURAL SELECTION TO OCCUR: 17a. Assuming that both types of pom-poms are present in the population, what do you think would happen to the pom-pom population if the black forest experienced a prolonged drought so all the trees died and the habitat became red grassland? 17b. Next, think about an alternative scenario. Suppose that natural selection over many generations had eliminated all the red pom-poms in the black forest habitat so only black pom- poms survived. After that, a prolonged drought resulted in this habitat turning into a red grassland. Would natural selection for pom-pom color occur? Why or why not? 17c. The above scenarios are showing that in order for natural selection to occur must exist within a trait.
- Topic: Galapagos Finches Darwin’s readings took him to a predictive theory of how species might change with time: what later thinkers have called microevolution. Darwin’s philosophical worldview then took him beyond his evidence to a conviction that environmental constraints could create whole new structures and organisms. Soon Darwin’s theory of macroevolution replaced the Creator with an environment that could create solely by constraint. For your thread: According to Chapter 13 section 13.1, define microevolution and macroevolution. The Galapagos islands have a great diversity of landscapes – from lush vegetation to nearly barren lava fields yet the Galapagos Finches survive on each island. How can this be explained? Using the varying bills of the Galapagos Finches in figure 13.3 and additional research, explain how microevolution is evidenced.Please use and cite any source(s) you can find to answer the following questions:1. Define "homologous structures," and explain how they help support evolutionary theory.2. Darwin proposed natural selection as a mechanism for evolution. How is it similar to artificialselection? How is it different?3. For natural selection to work, there must be genetic variation within a population as well asmutations? Why must there be both?4. What is the difference between natural selection and sexual selection?Q:need help with question We looked at how the beliefs of the Theory of Special Creation were challenged by Descent with Modification. Even before Lamarck and Darwin proposed that species do change over time, what belief of the Theory of Special Creation had already been challenged? Species do not change Lineages do not split Each species is separately created Each species is independently created Earth and life are young