How is knowing how an animal develops important to determining its common ancestor? Subscribe now. The number of this type of rodent will decrease. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Why is it that physical distinction between genders is more evident in humans than it is in other animals, say, a cat? Genetic variations that alter gene activity or protein function can introduce different traits in an organism. Individual differences with a genetic basis lead to in successive generations. Yes, when the environment changes, individuals with certain inherited traits survive and will be able to reproduce. For example, if a species of fish was only exposed to freshwater, they might look different than if they were exposed to saltwater. Similarities at the beginning of embryonic development imply they have common ancestors. a) Yes, all individuals can change a little and pass those changes on to their offspring. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. 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. 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. A species is a population of plants or animals that can breed to produce offspring that can then produce offspring themselves. Q7. Do monkeys vary in similar ways? To do this they have inserted a new segment of DNA where the mutated DNA was. There must be a sudden environmental change. 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. Could individuals of a species look different today than individuals of the same species did many generations ago? Human childhood is much longer than that of other animals; therefore, other animals rely only on their genetic information. a) Yes, all individuals can change a little and pass those changes on to their offspring. Be as specific as possible. Wing bone structures of penguins and other birds are functionally different, but homologous. According to the diagram, which of the following statements is true? Pellentesque dapibus efficitur laoreet. Posted For example, if one individual of a species had a mutation that caused them to have red eyes, while the other individuals of the species had the normal allele for eye color, the individual with the mutation would stand out. Why are humans so genetically similar? It is possible that the answer to this question could be found through further research. Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. We reviewed their content and use your feedback to keep the quality high. Play is dismissed as a human projection or as functional practice for adulthood that only 'higher" mammals are capable of. She met with a dog breeder who said that they could breed a dog for Miriam that had the best traits from both breeds. Why or why not? B) not all mutations are beneficial. When I was studying nutrition and soil management over 20 years ago, produce could already be classified as "franken-food". Could individuals of a species look different today than individuals of the same species did many generations Humans all share the same cultural knowledge and beliefs. Because scientists are witnessing capuchino finch evolution in mid-stride, the outcome is still a mystery. Nam lacinia pulvinarsltesque dapibu,

consectetur adipiscing elit. By the year 2000, the graph shows the population of light colored moths significantly increasing. Reproduction is the ability of an organism to create new offspring. so you can get an accurate answer to your question. Yet why do some races seem to have darker (or lighter) skin tones than others? This changed the way that humans reproduced and evolved, which in turn, changed the way that humans look today. Why didn't other animals evolve to become closer to humans in intelligence? copyright 2003-2023 Homework.Study.com. How do modern biology, evolution, and natural selection explain why there are differences in innate aptitude in animals (such as there are humans who are smarter than others, some are more artistic than others, etc.)? The concept was initially developed by Robert Trivers to explain the evolution of cooperation as instances of mutually . (I am of the assumption that changes in DNA spur the adaptations that take place--at least those through genetic mutation--and thus the adaptations, In what way is artificial selection different from natural selection? The birds with larger beaks were better at eating the large seeds, so only the birds with larger beaks got enough food to survive, reproduce, and pass the trait of large beaks to the next generation. Genetic variation within a species can result from a few different sources. Using one of these four ideas, explain why you do not look like another person in this room. Why do human bodies look so different across the planet? How do bacteria acquire genetic variation, and how does that differ from the mechanism by which humans acquire variation? Yes, some individuals can change a little and pass those changes on to their offspring. E) urea. Could the us have to maintain neutrality in ww1? Explain why the visual perceptions that other animal have and why that sensory input would vary and be differ from our own vertebrate visual system. those traits on to their offspring. Could individuals of a species look different today than individuals of the same species did many generations ago? AnswerGoat.com does not many any warranties about the accuracy, completeness or reliability of this information. Explain. b. Why or why not? Why do different genders of the same animal evolve differently? These separate evolutionary events led to different methods of achieving complex multicellularity in these groups. How can this population be expected to change over several successive generations, if the relative fitness differences observed remain unchanged? O No, species do not change even after many generations, so individuals of the What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. And their choices may not be entirely governed by genetics. The existence of play in non-human animals is a direct challenge to old-fashioned scientific ideas. The bacteria have become resistant over several generations. If you're looking for the answer to the question: Could individuals of a species look different today chegg? The pigweed has evolved to withstand the Roundup. Difficulties with Darwin's concept tempted a number of people to try to redefine species by means of interbreeding. Which of the following histograms show the correct representation of the snail shell thickness data 4, 7, 2, 5, 4, 3? How is this best explained? 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 more they used their feet, the more webbed their feet became, so they got enough food to survive and reproduce.Due to chance mutations, all the ducks feet in the next generation had more webbing. Thoroughly describe an example of each mechanism. Which of the following do scientists use to learn about organisms that lived many years ago but are no longer alive today? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. 20 hours ago, Posted In evolutionary terms, thats life in the fast lane. A. As many years went by, the environment changed such that the aquatic food sources were much more plentiful than those on land. why did dinosaurs evolve earlier than humans? 1. Why is sexual selection likely to result in more rapid changes in phenotype than typical natural selection in the same population? If two species look alike, live in different places, but are not genetically related, it is probably a case of _______. The new study identified all the points of difference for nine capuchino species, with a surprising result. Which of the following is not part of how we define a species? Nam risus ante, dapibus a molestie consequat, ultrices a. What are the four major ways that humans are affecting other species through our actions? Why or why not? Pellentesque dapibus efficitur laoreet. For this topic, please briefly compare and contrast microevolution and macroevolution. A million years ago, there were probably a few different species of humans around, including Homo heidelbergensi s, which shared similarities with both Homo erectus and modern humans, but more primitive anatomy than the later Neanderthal. Mediterranean climates like California, with hot and dry summers and cold wet winters . What is genetic recombination? We store cookies data for a seamless user experience. Why do plants and animals differ with regards to their development and how, Theories about why human universals exist suggest all of the following except: a. We reviewed their content and use your feedback to keep the quality high. For the past 10 to 25 years, farmers have planted crop seeds that have been genetically modified to withstand treatment with a common weed killer called Roundup. What does the pattern of genetic variation in modern human tell us about the origin and spread of homosapiens? Homo neanderthalensis ("Man from the Neander Valley"): Also known as Neanderthals, these humans lived in western Asia and Europe. Skin color is not directly tied to race. Are age and gender independent variables? a. Could individuals of a species look different today than individuals of the same species did many generations ago? There are some phenotypic differences among human populations that reflect adaptation to different environments. What is convergent evolution? Q6.5. What are the 2 main reasons for variation between organisms of the same species? The most common mechanism for this is natural selection, in which individuals with beneficial heritable traits reproduce more than organisms without these traits, causing an increase in the frequency of the trait within the population. Scientists have estimated that there are around 8.7 million species of plants and animals in existence. Could individuals of a species look different today than individuals of the same species did many generations ago? Nam risus ante, dapibus a molestie consequat, ultrices ac magna. a. \\ b. How does evolution occur in a species? Explain why a single human body is considered to be a mega-diverse ecosystem. 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. This is because the mutation would be passed down to future generations, and over time, the appearance of the species would change. (EQ: 9, 13) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. c. just other multicellular animals and plants. To continue further with th. Over time, the appearance of a species can change through evolution. There is some debate over whether individuals or the population adapt to change. 2017. What is genetic recombination? The Gray's come from a star-system known as Zeti Reticuli; Which is a star system located somewhere in the southern celestial hemisphere. Substances larger than ________ are normally not allowed to pass through the filtration membrane. Because so much of each species genome is the same, Campagna says its easier to find the minute differences, making them great subjects for study. If so, why did we evolve this way? Individuals of the same species generally \\ experience prezygotic barriers to reproduction. The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. They were more muscular than we were and they had bigger brains than we did (or do today). What are the 2 main reasons for variation between organisms of the same species? Describe what has most likely happened over time to lead to this. Was P. robustus a human? CHOOSE ALL THAT APPLY! Why? In animals generally, how much variation do you expect to see within as compared to between different races of a single species? Genetic drift is evolutionary change resulting from: a. chance differences in reproductive success b. natural selection c. differences in individuals' fit to their environment d. mutation. Campagna thinks that force comes from females as they choose among competing males based on color and song. These include the amount of genetic variation within a population, the number of evolutionary opportunities that a population has, and the number of genetic mutations that occur within a population. (a) Do humans experience interspecific competition? How do changes in DNA affect changes in adaptations? Why is our DNA so similar to all other living organisms? What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. What makes humans so different from the rest of the species on the planet? Why is a convoluted brain better than a smooth one? Be s. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Why does natural selection occur more in animals than humans? B. Nam lacinia pulvinar tortor nec facilisis. Traits must be inherited from one generation to the next. DDT is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. Learn about human evolution, how modern humans developed. O Yes, some individuals can change a little and pass those changes on to their offspring. It's very important, and theoretically you could have a race where everyone has the same genotype for physical appearance. The technology behind the atomic bomb only exists because of a cooperative hive mind: hundreds of scientists and engineers. What makes an animal an animal? Homo sapiens share a common ancestor with primates. Of course, the source of that female preference probably resides somewhere in the DNA, too. b) Yes, some individuals can change a little and pass those changes on to their offspring. (b) How does competition among humans differ from the competition in other animal species? Describe why heritability only applies to population (not individuals or species), and how heritability can change without any genetic change occurring. Explain why only populations evolve but individuals do not. Why or why not? a) There is no difference; both have caused evolution throughout the history of life on earth b) Artificial selection applies to changes in domestic animals only, while natural sele. Finally, the two species would need to be unable to interbreed. 1. A farmer takes pollen from a plant with desired traits and intentionally places the pollen on a plant with other desired traits. Nam lacinia pulvinar tortor nec facilisis. What are they doing that causes a shift in the gene frequencies for "desirable" traits? There is no definitive answer to this question, but there are some interesting theories that can be considered. Some scientists believe that the answer is yes, while others believe that the answer is no. In evolution, why is it important that individuals vary from each other? b. What is culture and how does culture differ between human and nonhuman primates? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Why is it harder for human babies to be delivered than other animals? How can similar types of genetic mutation occur in different individuals of the same species? One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. Why does natural selection only act on heritable variation? Access to over 100 million course-specific study resources, 24/7 help from Expert Tutors on 140+ subjects, Full access to over 1 million Textbook Solutions. How do animals that live in different environments meet their need for efficient gas exchange? All of the following are protective adaptations except one. Are humans particularly self-destructive when compared to other animals? Which of the following is REQUIRED for the process of evolution by natural selection to occur?

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