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They are the same species. Be s. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Which of the following conditions would biologists say was required for the evolution of DDT resistance in a population?A few mosquitoes in the population were resistant to DDT before it was ever used.Mosquitoes in the population learned to adapt to the high levels of DDT in the environment.The mosquito population needed to evolve DDT resistance in order to avoid extinction.Exposure to DDT caused specific, nonrandom mutations for DDT resistance within the population.Use the following passage to answer the next two questions.Ducks are aquatic birds. His observations of the embryos lead him to conclude that the species share a common ancestry. (opens in new tab) A person walking in the Mojave Desert during the post-apocalyptic Wasteland Weekend festival on Sept. 28, 2019. Could individuals of a species look different today than individuals of the same species did many generations ago? All rights reserved. A species is a population of plants or animals that can breed to produce offspring that can then produce offspring themselves. copyright 2003-2023 Homework.Study.com. What are the general characteristics shared by all animals? Q6.5. O Q8. How do changes in DNA affect changes in adaptations? The most well-known example is a group of more than a dozen finch species in the Galapagos. A species is a group of individual organisms that interbreed and produce fertile, viable offspring. A. environment and acquired characteristics will not affect populations, only individuals B. no way to pass environment or acquired characteristics to offspring, only genes C. heritable variat. Why or why not? This is because the mutation would be passed down to future generations, and over time, the appearance of the species would change. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. This observation led her to hypothesize that longer horns offer more protection against predation than do shorter horns. b. Why is it necessary to take enough time before making a decision? 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.)? A surprisingly small population could save our species. Miriam wanted a new pet. same species would not look different. Use the following passage to answer the next two questions. 2 are very similar genetically, sharing 99 percent 1 of their genes. You can specify conditions of storing and accessing cookies in your browser. What is a distinguishing factor that separates mammals from other animals? 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. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. To put this another way: all humans have the same genes, yet we do not look alike. B. They were therefore able to eat aquatic plants and get enough food to survive and reproduce.Ducks with more webbing were better at eating aquatic plants than ducks with less webbing, so the ducks with more webbing survived and reproduced better than ducks with less webbing.Ducks with less webbing needed to grow more webbing in their feet in order to improve their access to aquatic plants, which allowed them to survive better and reproduce more.Q6.10. \\ do not interbreed extensively. Difficulties with Darwin's concept tempted a number of people to try to redefine species by means of interbreeding. It is their physical features and anatomical parts. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. Could the stock market crash be prevented? Humans share common biological constraints b. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Reduction of the burning of fossil fuels (coal). Evolutionary biologists often compare the morphological features of different organisms to look for relationships to determine how they have changed over time. 11 months ago, Posted
Why? Why do human bodies look so different across the planet? Humans shape their environment in ways that other organisms cannot. Natural Selection is an example of a mechanism of evolution. All of the following are protective adaptations except one. The existence of play in non-human animals is a direct challenge to old-fashioned scientific ideas. This is a question that has been debated for many years. No, species do not change even after many generations, so individuals of the same species would not look different. To know more check the
I've rounded off in many locations to ensure that the sum of allele frequencies and genotypes will be one and the number of bears will be a whole number. b. How can this population be expected to change over several successive generations, if the relative fitness differences observed remain unchanged? Why is our DNA so similar to all other living organisms? 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. What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. Ducks are aquatic birds. If variations or mutations are extreme enough, new species can result. 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. Pellentesque dapibus efficitur laoreet. O No, species do not change even after many generations, so individuals of the same species would not look different. Explain why only populations evolve but individuals do not. The pigweed has evolved to withstand the Roundup. In what ways is culture similar between human and nonhuman primates? Species have changed and continue to change over time because of their environment, genetics, and reproduction. 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. What caused us to become so different? Get plagiarism-free solution within 48 hours. Numerous species in the same region must have recently become extinct. Over time, the appearance of a species can change through evolution. d. Fertile offspring are produced. B. environment and acquired characteristics will no affect populations, only individuals C. natural selection c. Since humans evolved, where are all the other human variations resulting from random genetic mutations? Nam lacinia pulvinar tortor nec facilisis. Here's how it works. How does genetic variation help a population survive in the face of changing, uncertain environments? Could individuals of a species look different today chegg? 20 hours ago, Posted
Living Bird Autumn 2017Table Of Contents, Right Bird, Right House: Guide to Birds and Birdhouses for Your Region, How to Use BirdCast Dashboard to See Your Local Migration in Detail, How to Choose the Right Kind of Bird Feeder, What's That Bird Song? As you know, the scales of these changes are different. Why or why not? Yes, all individuals can change a little and pass those changes on to their offspring. Its possible that in these rapid radiations, whats changing is when and how much of these ingredients are being added.. Anaximander of Miletus (c. 610546 BC) proposed that the first animals lived in water, during a wet phase of the Earth's past, and that the first land-dwelling ancestors of mankind must have been born in water, and only spent part of . Which is important for evolutionary change and why? 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. Why is it that a population is the unit of evolution rather than the individual? We've gathered the most relevant information and related questions to: Could individuals of a species look different today chegg? Yes, all individuals can change a little and pass those changes on to their offspring Yes, some individuals can change a little and pass those changes on to their offspring Yes, some individuals with certain traits are. What are the characteristics that all mammals have in common? If so, how do modern humans differ from them? A scientist is studying embryos from two different species. In Module 2 we will dive deep into 3 different AI writing programs to see how each one works and how they can best serve you in your writing endeavors. Explain why a single human body is considered to be a mega-diverse ecosystem. D) not all mutations affect an entire species. Why didn't humans evolve to hibernate like many other mammals? What makes modern humans (Homo sapiens) unique in terms of our biological and cultural adaptations? Their feet are webbed and this trait makes them fast swimmers. Changes in evolutionary pathways are related to changes in gene structure and changes in cultural evolution. then you've come to the right place! What does. Could individuals of a species look different today than individuals of the same species did many generations ago (b) Which is important for evolutionary change and why? One or more species must have recently been introduced to the region. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. 6. b) Yes, some individuals can chang; Why didn't humans evolve to hibernate like many other mammals? Nam lacinia pulvinar tortor nec facilisis. Yes, all individuals can change a little and pass those changes on to their offspring. To put this another way: all humans have the same genes, yet we do not look alike. Why or why not? C) Genetic variation. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Nam lacinia pulvinar tortor nec facilisis. 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. This can reflect many initiatives as 222 can express the need to redirect personal patterns of behavior, drastically, which will automatically change a personal course, or current trajectory. a. Q7. Yes, some individuals can change a little and pass those changes on to their offspring. Most people today would classify such forms as different species, and none of these sibling species mate with one another in normal circumstances. What is the connection between the size of a snail and their ability to reproduce, when around birds? The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million years ago. Yes, some individuals with certain traits are more. p2: homozygous dominant (sad) 2pq: heterozygotes (sad) Q2 heterozygous recessive (happy) This is an scenario of what could occur. How are humans able to affect and alter the phenotypes of other organisms through artificial selection? c. Its populations can interbreed. Assume that a population of one of these finch . When we adapt, or evolve over time, does it happen through genetic mutation or something different? The most complete fossil individual of this species is known as the 'Turkana Boy' - a well-preserved skeleton (though minus almost all the hand and foot bones), dated around 1.6 million years old. Happy face spider photos courtesy of Rosemary Gillespie, UC . Finally, the two species would need to be unable to interbreed. The different color genes could be turned on at a certain time, or turned off, be slightly on, or slightly off. offspring. Which adaptation described below probably does not protect the plant from being eaten by herbivores? The left arm of a human, the front flipper of a seal, the wing of a bird, and the wing of a bat have the same structure and order of bones. Q6.5. How can everyone alive today be the same species if not all populations today have Neanderthal DNA while some people have up to about 4% Neanderthal DNA? 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.. 6. Why are there so many species of monkeys but only one species of human? Pellentesque dapibus efficitur laoreet. What are the four major ways that humans are affecting other species through our actions? A geographically continuous population has a gene pool that is relatively homogeneous. What is the scientific reason why people around the world have different skin colors? 2. There is similar variety for wings and head color, creating an almost mix-and-match effect when the species are viewed side by side. She couldn't decide if she wanted a Poodle or a Siberian Husky. Why do different genders of the same animal evolve differently? Yes, some individuals with certain traits are more likely to survive and pass (a) convergent evolution (b) divergent evolution (c) evolutionary cyclicity (d) uniformitarianism. 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. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. How are modern humans distinct from Paranthropus robustus? There are two layers to physical appearance - genotype and phenotype. Evolution refers to a process in which the genetic composition of a species changes over time, from one generation to the next. We have the same building blocks, but the instructions on what to do with those building blocks are different among the finches, says Campagna. While webbed feet were evolving in ancestral ducks, with each generation:Most ducks had about the same amount of webbing on their feet as their parents.Most ducks had more webbing on their feet than their parents.Most ducks had less webbing on their feet than their parents.The amount of webbing on ducks feet had no relationship with the amount their parents had.Q6.9. Of course, the source of that female preference probably resides somewhere in the DNA, too. Many animals share similar characteristics with other animals and also share some features with humans. Do animals have the same blood groupings? 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. why did dinosaurs evolve earlier than humans? Did doc holliday actually shoot johnny ringo? Owned by the same company as Crackle, it's full of low-budget style films. a. weather. This textbook can be purchased at www.amazon.com. All rights reserved. I first wrote about these profound issues in the MIT Tech Review seventeen years ago, and today's piece expounds, expands and updates the inscrutability of AI into the philosophical, geopolitical, sociological and hermeneutical domains, as we spawn a novel crucible of metacognition. This is where terms like 'heterozygous' come into play. How is this best explained? Explain. Q6. Yes, some individuals can change a little and pass those changes on to their offspring. Lorem ipsum dolor sit amet, consectetur adipiscing elit. What are the impli. 2003-2023 Chegg Inc. All rights reserved. Near industrialized areas, black powder covered surfaces, including the moth habitat. If there is NO SELECTIVE SURVIVAL based on shell thickness within a population of snails, what happens to shell thickness in response to crab predation?The average shell thickness increases within each generation, but there is no change in shell thickness from generation to generation.There is evolution by natural selection of shell thickness, and average shell thickness increases every generation.There may be evolution of shell thickness, but not through natural selection and not necessarily toward thicker shells.There is no change in shell thickness within the population.Q6.3. What is genetic recombination? Question: Q6.4. C. Variatio. How are they different? Why are animals shaped differently in cooler climates than in warmer ones? Fontana, P.L. Finally, discover cousin species like Homo neanderthalensis. Which of the following histograms show the correct representation of the snail shell thickness data 4, 7, 2, 5, 4, 3? The outcome of each genetic bird recipe is a capuchino finch that looks differentone species with a black throat and gray cap, another with a white throat and gray cap. Humans share the same genetic code with: a. just other vertebrates. The technology behind the atomic bomb only exists because of a cooperative hive mind: hundreds of scientists and engineers. Explain how the mechanisms of evolution, such as natural selection, would be at play in the changing of human genes. What is the change in a species over time or the process of biological change by which descendants come to differ from their ancestors called? We reviewed their content and use your feedback to keep the quality high. Answering the following Biology Lab questions.Q6.1. Two major equations of hardy-weinberg rule are: p2 + 2pq + q2 = 1 p + q = 1 The p and the q represent the allele frequencies for Happy and Sad respectively. No other species has ever wielded such power, and no species could. Get access to this video and our entire Q&A library, Human Evolution Lesson for Kids: Timeline & Stages. Was P. robustus a human? Which is important for evolutionary change and why? Be sure to discuss both the evolutionary implications/benefits of light skin pigmentation and dark skin pigmentation. 0.48. In evolutionary terms, thats life in the fast lane. 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. Why does natural selection only act on heritable variation? a) Variation b) Normalization c) Extinction. a. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Non-human primates have a lot to tell us about ourselves and our origins. 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. Humans and chimpanzees are estimated to have diverged their evolutionary paths about 5 to 6 million years ago while remaining the same before that period. Pluto TV is an ad-supported streaming service run by Paramount. why or why not? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Q5. AnswerGoat.com does not many any warranties about the accuracy, completeness or reliability of this information. It is believed that humans started to transfer information from tools to symbols and from symbols to letters from generation to generation. Any action you may take upon the information you find on this website is strictly at your own risk. Why do humans have some genes in common with bacteria, more genes in common with fish, and even more genes in common with mice? In Europe, dark peppered moths were rare before the 1850's and light colored moths were plentiful. 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. Explain some reasons why humans have been able to expand in number and distribution to a greater extent than most other animals. If humans evolved from a common ancestor we share with monkeys, why do we have such broad variations in physical features across our species (i.e. What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. a) Yes, all individuals can change a little and pass those changes on to their offspring. Mice & Keyboards. What are possible reasons for t, Different species of animals rely more heavily on different senses. A. Consider also that the environment that this organism lives in changes for the worse. Does genetic variation makes evolution possible? Most ducks had more wobbing on their foet than their parents. Olfspring must be similar to their parents due to shared genes. When I was studying nutrition and soil management over 20 years ago, produce could already be classified as "franken-food". Yes, all individuals can change a little and pass those changes on to their offspring Yes, some individuals can change a little and pass those changes on to their offspring Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring No, species do not change even after many generations, so individuals of the same species would not look different Submit. A species is often defined as a group of individuals that actually or potentially interbreed in nature. Are age and gender independent variables? Transitional fossils show that the ancestral horse was much smaller than the modern horse. Why are these genes similar but not identical? One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. From a genetics standpoint, why is there such a huge difference in height among humans? Fusce dui lectus, congue vel laoreet ac, d, congue vel laoreet ac, dictum vitae odio. \\ c. They have the same phenotype. However, humans still have significant differences with every species that exists on Earth. Could individuals of a species look different today than individuals of the same species did many generations ago? Could individuals of a species look different today than 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, This textbook can be purchased at www.amazon.com, ipiscing elit. Therefore, the first concept of the term "species" was based on the morphology. In evolution, why is it important that individuals vary from each other? If there is NO VARIATION in shell thickness within a population of snails, and no mutations occur, what happens to shell thickness in response to crab predation?Shell thickness does not evolve in the population.Shell thickness evolves for some snails in the population.Shell thickness increases for all snails in the population.Average shell thickness in the population evolves over several generations.Q6.2. While webbed feet were evolving in ancestral ducks, with each generation: Most ducks had about the same amount of wobbing on their feet as their parents. Why or why not? How do animals that live in different environments meet their need for efficient gas exchange? In sympatric speciation, groups from the same ancestral population evolve into . Different finch species live on different islands. B. organisms change by acquired characteristics. Discuss at least five aspects/qualities/traits of non-human primates that are similar and/or different from humans. Why or why not? (a) What additional genetic factors increase the resemblance between siblings? The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. C. organism populations can change physically over long periods of time. Some force other than environmental conditions must be acting upon the males to produce so many species. O Yes, some individuals can change a little and pass those changes on to their A trait with a genetic basis that increases the fitness of an individual with the trait in a particular environment, compared to individuals lacking the trait. Skin color is not directly tied to race. They would do this by breeding a Poodle with a Husky. 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. Pellentesque dapibus efficitur laoreet. Why has nature decided to create exactly two genders (for humans and animals) and not 3 or 5 for example? Privacy Policy. \\ vary only very slightly in appearance. All rights reserved. Some populations are innately superior to others, because they have what it takes to prevail in those environments. What is an example of a genetic mutation that created a new species in the modern era that humans have documented? Why or why not? By what mechanisms have we evolved into distinct species? Unlike Darwins finches, in which environmental conditions such as food supply rewarded birds with different beak shapes, the capuchino finches all eat the same type of food and live in grasslands scattered across South America.
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