We store cookies data for a seamless user experience. There are surprisingly large genetic differences between individuals from the same population; indeed, recent mitochondrial DNA evidence shows greater variation within regional populations than that shown between historical human races. A skydiver of mass 60.0kg60.0 \mathrm{~kg}60.0kg can slow herself to a constant speed of 90km/h90 \mathrm{~km} / \mathrm{h}90km/h by orienting her body horizontally, looking straight down with arms and legs extended. Explain. Give a reason why animals must be classified. Human childhood is much longer than that of other animals; therefore, other animals rely only on their genetic information. A scientist is studying embryos from two different species. 2003-2023 Chegg Inc. All rights reserved. All information of this website is published in good faith and for general information purposes only. Fossils of organisms that lived many years ago, and DNA from the remains of organisms that lived many years ago. DDT is an insectieide that was used extensively in the mid-1900s to kill mosquitoes. (a) Two or more unrelated species change independently of each other and the environment in which they live (b) Two or more related species change to become less similar due to living in different environments (c) Two or more. This is a question that has been debated for many years. Over time, the genetic makeup of the two resulting populations becomes more and more different, until each population becomes a separate species. \\ do not interbreed extensively. As many years went by, the environment changed such that the aquatic food sources were much more plentiful than those on land. Lettuce, broccoli and spinach may look and taste fairly normal but Studies done in the early 2000 . Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Yes, some individuals with certain traits are more likely to survive and pass Considering chimpanzees and humans share 90% of the same DNA, why can't they breed together? From the Autumn 2017 issue of Living Bird magazine. In evolution, why is it important that individuals vary from each other? At an early stage of development, both species have the same embryonic tissues, but it disappears in one of the species at a later time. e. all living organisms, with just a few exceptions. A head of broccoli today is not the same as a head of broccoli 70 years agothey're almost different species. In this sense, a species is the biggest gene pool possible under natural conditions. Could individuals of a species look different today than individuals of the same species did many generations ago? Nam lacinia pulvinar tortor nec facilisis. Propose an explanation for the return of the light-colored peppered moth population. Chris Chen, Integrated Vineyard Systems Advisor in Sonoma, Mendocino, and Lake Counties at the University of California Cooperative Extension is exploring solutions to this question. A food source must disappear. Campagna points out that to a certain degree there may be a cultural element involved, tooa female picks a bird colored like her father or other relatives. Use the following passage to answer the next two questions. Fusce dui lectus, c, Explore over 16 million step-by-step answers from our library, View answer & additonal benefits from the subscription, Explore recently answered questions from the same subject, Test your understanding with interactive textbook solutions, Biology Today and Tomorrow with Physiology, Biology Today and Tomorrow without Physiology, Campbell Essential Biology with Physiology. Pellentesque dapibus efficitur laoreet. a) Yes, all individuals can change a little and pass those changes on to their offspring. If the current in the outer solenoid is changing at a rate I2/t\Delta I _ { 2 } / \Delta tI2/t, what is the magnitude of the induced emf in the inner solenoid? No, species do not change even after many generations, so individuals of the same species would not look different. Humans have genetic diversity than chimpanzees. B) glucose In biology, what is an adaptation? Why? To continue further with th. copyright 2003-2023 Homework.Study.com. How similar were humans 2,000-3,000 years ago compared to us now in appearance and genetics? Donec aliquet, View answer & additonal benefits from the subscription, Explore recently answered questions from the same subject, Test your understanding with interactive textbook solutions, Biology Today and Tomorrow with Physiology, Biology Today and Tomorrow without Physiology, Campbell Essential Biology with Physiology. The descendants would become a completely different species that would have no similarities to the original individuals. What caused us to become so different? Which of the following is NOT a potential benefit of genetic engineering? Why or why not? Is it possible for two different genes to imply different phylogenetic relationships among a group of species? b. And instead of requiring large changes to the DNA to govern color production over many parts of the birds body, it has been accomplished through just a few changes to regulatory regions of the genome. Science Advances. Explain why monotremes are unique mammals. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. b. Evolution only occurs in a very large gene pool. Could pitcher plants genetically evolve or mutate to become similar to small carnivorous animals in the coming years (100, 200 or even 1,000)? Why does natural selection occur more in animals than humans? What is the reason for the phenotypic differences between individuals of the same species? You can specify conditions of storing and accessing cookies in your browser. Of course, the source of that female preference probably resides somewhere in the DNA, too. The concept was initially developed by Robert Trivers to explain the evolution of cooperation as instances of mutually . 2 are very similar genetically, sharing 99 percent 1 of their genes. Proponents of the adaptation argument argue that individuals adjust and adapt to new situations and conditions, while opponents argue that the population as a whole adapts, which can lead to unforeseen consequences. The genotype that an individual possesses for a trait, in turn, determines the phenotype the observable characteristicssuch as whether that individual actually ends up with straight, wavy, or curly hair. There must be a sudden environmental change. Could individuals of a species look different today than individuals of the same species did many generations ago? In evolutionary biology, reciprocal altruism is a behaviour whereby an organism acts in a manner that temporarily reduces its fitness while increasing another organism's fitness, with the expectation that the other organism will act in a similar manner at a later time.. Natural Selection is an example of a mechanism of evolution. In what ways is domestication (selection by humans) similar to natural selection, and in what ways is it different? Morphology is how an individual looks. First, the two species would need to be geographically isolated from each other. Could the story animal farm have taken place anywhere else? She likes certain aspects of both types of dog. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Could individuals of a species look different today than individuals of the same species did many What causes variation in a species? The light moths declined in number and the dark colored moths increased in number. All rights reserved. Would you expect the DNA of the goat to be more similar to? Its rather like two cooks using the exact same ingredients for spaghetti sauce, but using a different recipe, varying when and how much of each ingredient is added, so the two sauces taste quite different. What would such an evolutionary development look like? Why is genetic variation within a species important to conservation? New species can eventually emerge with all these new adaptations over generations. The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million years ago. While it took more than 2 million years for Darwins finches to evolve into their present forms, nine capuchino species (in the genus Sporophila) have appeared in the last 500,000 to 1 million years. C) Genetic variation. Explanation: Species evolve over time scales/generations, and individuals that possess traits that are advantageous in the current environment can live at a higher frequency and transfer those advantageous traits on to their offspring. TUCKER CARLSON: One thing we have learned after many years in the news business is that every once in a while you've got to eat some crow and admit that despite your best intentions, you were . B. What is biological evolution? What makes humans so different from the rest of the species on the planet? The histograms below show data obtained by a student playing crab in the Darwinian Snails simulation . B. According to the diagram, which of the following statements is true? It's not clear based on the DNA evidence whether the 13 species arose from a single migration of one species or multiple migrations of several species from the mainland to the islands. This is because the mutation would be passed down to future generations, and over time, the appearance of the species would change. b. 6. B) not all mutations are beneficial. What might scientists say about the human, seal, bird, and bat based on this evidence? Finally, the two species would need to be unable to interbreed. How do changes in DNA affect changes in adaptations? Question: Q6.4. B. c. just other multicellular animals and plants. Wing bone structures of penguins and other birds are functionally different, but homologous. The latest findings, published in the journal Science Advances, suggest the differences may depend on just a few genes with an outsized role in the evolution of the birds appearance. AnswerGoat.com will not be liable for any losses and/or damages in connection with the use of the website. A few years went by without much rain, and the only species of tree that survived had large seeds. d. continental drift. Why do humans have some genes in common with bacteria, more genes in common with fish, and even more genes in common with mice? It was very effective at first, but after a few decades DDT became less effective at killing mosquitoes because many populations had evolved resistance to DDT. Changes in evolutionary pathways are related to changes in gene structure and changes in cultural evolution. There is some debate over whether individuals or the population adapt to change. When Carolus Linnaeus first came up with his binomial nomenclature taxonomy, all individuals were grouped by morphology. (b) How does competition among humans differ from the competition in other animal species? If a species is evolving, when is it considered a new species different from the organism it evolved from? Recently, more and more farmers have discovered that their fields have Roundup-resistant pigweed growing along with their crop. Proposals that one type of animal, even humans, could descend from other types of animals, are known to go back to the first pre-Socratic Greek philosophers. What is a distinguishing factor that separates mammals from other animals? Every plant or animal belongs to a species. Why is it that chimpanzees have 99% the same DNA as humans, yet the one percent distinguishes us to such a degree? A farmer takes pollen from a plant with desired traits and intentionally places the pollen on a plant with other desired traits. Could individuals of a species look different today than individuals of the same species did many generations But if the malesor the preferences of the femaleswere to change, the species are still closely enough related that they could probably still mate successfully. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. One or more species must have recently been introduced to the region. Q8. Its individuals appear different from other species. Non-human primates have a lot to tell us about ourselves and our origins. Could individuals of a species look different today than How does the human body's molecular system differ from dogs? Scientists have found large groups of fossils of marine animals on mountaintops. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Was the final answer of the question wrong? So we've already got in one year we've already got nearly a sixth of these people dying of this number of people dying. Why or why not? Which of the following histograms show the correct representation of the snail shell thickness data 4, 7, 2, 5, 4, 3? They were made famous by Charles Darwin, who developed his theory of evolution in part by studying the birds. Why do humans, animals, and plants have to evolve reproductive function? If variations or mutations are extreme enough, new species can result. 2007-2023 Learnify Technologies Private Limited. Many generations later, almost all the birds had the slightly larger beaks. Discuss both the evolutionary implications/benefits of light skin pigmentation and dark skin pigmentation. offspring. Humans share common biological constraints b. In Europe, dark peppered moths were rare before the 1850's and light colored moths were plentiful. . This site is using cookies under cookie policy . b) Yes, some individuals can chang. The answer to this question is not well understood, but it is thought that a number of things would need to happen in order for one species to change into two species over time.
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