How similar were humans 2,000-3,000 years ago compared to us now in appearance and genetics? Which of the following conditions would biologists say was required for the evolution of DDT resistance in a population? No other species has ever wielded such power, and no species could. Which of the following is REQUIRED for the process of natural selection to occur? As in all species, there is variation among individual human beings, from size and shape to skin tone and eye color. Yes, some individuals can change a little and pass those changes on to their offspring. Over more recent history, during the last 10,000 years, there have been significant changes for humans to . Why or why not? In what ways is domestication (selection by humans) similar to natural selection, and in what ways is it different? why or why not? What is the difference between genetic diversity and genetic variation? Lorem ipsum dolor sit amet, consectetur adipiscing elit. Explain how animal behaviors, including human behaviors, are governed by genetic inheritance. d. continental drift. Is it possible for two different genes to imply different phylogenetic relationships among a group of species? Yes, some individuals can change a little and pass those changes on to their offspring. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Submit Q6.6. d. greater the chance one will go extinct. Explain why a single human body is considered to be a mega-diverse ecosystem. DDT is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. 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. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Fusce dui lectus, congue vel laoreet ac, d, congue vel laoreet ac, dictum vitae odio. A species is often defined as a group of individuals that actually or potentially interbreed in nature. This is an example of a. sympatric speci, How are humans evolving today? Explain. When I was studying nutrition and soil management over 20 years ago, produce could already be classified as "franken-food". What does the pattern of genetic variation in modern human tell us about the origin and spread of homosapiens? D) amino acids Could a roman legion defeat a medieval army? This is because the different environments would cause different changes in the fish's appearance. C) not all mutations cause visible change. What is a distinguishing factor that separates mammals from other animals? What makes humans so different from the rest of the species on the planet? Variation in traits that affect which individuals survive and reproduce in each generation is called: a. fatalism b. genetic engineering c. morphology d. catastrophism e. natural selection. Are DNA mutations and natural selection two different mechanisms of evolution? 1. 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. She returned every week for 12 weeks to measure survival of tagged lizards. Yes, some individuals can change a little and pass those changes on to their offspring. Why or why not? 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. To test this hypothesis, the researcher tagged 20 lizards with long horns and 20 lizards with short horns in each of two locations: Desert Valley, where there are no predatory birds, and Cactus Corner, where there are predatory birds. Current forms could continue to diverge into ever more distinct species or they could collapse back into one or a few species through hybridization or extinction. Why or why not?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.Q6.6. 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. 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. No, species do not change even after many generations, so individuals of the same species would not look different. Why are animals shaped differently in cooler climates than in warmer ones? What does. a) Yes, all individuals can change a little and pass those. During the Industrial Revolution through the mid-20th century, factories and power plants, which burned coal, produced large quantities of soot and smog. b) Yes, some individuals can change a little and pass those changes on to their offspring. 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. 1. 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. 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? Could individuals of a species look different today than individuals of the same species did many generations ago? No, species do not change even after many generations, so individuals of the same species would not look different. If variations or mutations are extreme enough, new species can result. b. just other multicellular animals. Pellentesque dapibus, congue vel laoreet ac, dictum vitae odio. Any action you may take upon the information you find on this website is strictly at your own risk. If we share 99% of the DNA of a chimpanzee, why are we so different than the chimpanzee? 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. Answering the following Biology Lab questions.Q6.1. Why do different genders of the same animal evolve differently? A. All rights reserved. You can specify conditions of storing and accessing cookies in your browser. All other trademarks and copyrights are the property of their respective owners. A population is a group of individuals of the same species. 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.)? Scientists look for those rare instances when a species suddenly diverges, or radiates into multiple forms, each with a different appearance or behavior. Q5. In contrast, humans have many more microRNA molecules (miRNAs) than these animals. Scientists have found large groups of fossils of marine animals on mountaintops. How are these two copies similar? 2003-2023 Chegg Inc. All rights reserved. Give a reason why animals must be classified. The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million years ago. All humans carry the same genes. could individuals of a species look different today. Explain! c. Its populations can interbreed. 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. 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. Nam lacinia pulvinar tortor nec facilisis. Genetic drift b. Gene flow c. Mutation d. Natural selection. She met with a dog breeder who said that they could breed a dog for Miriam that had the best traits from both breeds. They are from different gene pools. Q6.5. Why is our DNA so similar to all other living organisms? 0.48. why or why not? Experts are tested by Chegg as specialists in their subject area. What are the differences between a monkey and a human? 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. Evolution is a biological term that can . The billions of human beings living today all belong to one species: Homo sapiens. To put this another way: all humans have the same genes, yet we do not look alike. The amount of webbing on a duck's feet is a heritable trait. Discuss at least four differences between apes and humans. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Donec aliquet. What are the general characteristics shared by all animals? Ecologists estimate the size and density of populations using quadrats and the mark-recapture method. 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. Pluto TV is an ad-supported streaming service run by Paramount. \\ have many common physical and behavioral characteristics. There must be a predator preying on the species. What is genetic recombination? Which kinds of animals are most different from each other: humans or chimpanzees? How can this population be expected to change over several successive generations, if the relative fitness differences observed remain unchanged? There must be a sudden environmental change. Question Could individuals of a species look different today than individuals : 425869. C. O Yes, all individuals can change a little and pass those changes on to their Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Propose an explanation for the return of the light-colored peppered moth population. Why or why not? The concept was initially developed by Robert Trivers to explain the evolution of cooperation as instances of mutually . South Carolina, Colleton County | 8.9K views, 267 likes, 44 loves, 169 comments, 13 shares, Facebook Watch Videos from COURT TV: Judge Clifton Newman. Describe why heritability only applies to population (not individuals or species), and how heritability can change without any genetic change occurring. We store cookies data for a seamless user experience. Owned by the same company as Crackle, it's full of low-budget style films. To know more check the Natural Selection is an example of a mechanism of evolution. Why do humans share lots of DNA with both rats and bananas when each of these are very different things? Get plagiarism-free solution within 48 hours. All of the following are protective adaptations except one. Another theory is that individuals of a species could look different today if they had different genetic mutations. Today's AI opinion piece by Kissinger, Schmidt & Huttenlocher is wonderfully thought-provoking. Be s. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. According to the diagram, which of the following statements is true? Could individuals of a species look different today than individuals of the same species looked many generations ago? Was P. robustus a human? Which of the following is an example of genetic engineering? A large population of animals is split in two by a physical barrier. Their feet are webbed and this trait makes them fast swimmers. Selection is the way that different traits affect an organism's ability to survive and reproduce. One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. If so, how do modern humans differ from them? b. Over one or two generations, beak size among finches increased. \\ e. They are the same species and a. In sympatric speciation, groups from the same ancestral population evolve into . Therefore, the first concept of the term "species" was based on the morphology. 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. Could individuals of a species look different today than individuals of the same species did many generations ago? Why are there more species of insects than mammals and birds? Could the us have to maintain neutrality in ww1? Exposure to DDT caused specific, nonrandom mutations for DDT resistance within the population. Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell is getting ready to divide (known as genetic recombination). They are the same species. Could pitcher plants genetically evolve or mutate to become similar to small carnivorous animals in the coming years (100, 200 or even 1,000)? a) Yes, all individuals can change a little and pass those changes on to their offspring. 2017. Because scientists are witnessing capuchino finch evolution in mid-stride, the outcome is still a mystery. 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. The current 13 finch species are the only species that survived. AnswerGoat.com will not be liable for any losses and/or damages in connection with the use of the website. What would such an evolutionary development look like? 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. What causes variation in a species? A certain species of rodent eats only one type of plant. Thoroughly describe an example of each mechanism. Why or why not? The new study identified all the points of difference for nine capuchino species, with a surprising result. 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 Humans share common biological constraints b. Is it a survivor bias? Repeated divergent selection on pigmentation genes in a rapid finch radiation. Difficulties with Darwin's concept tempted a number of people to try to redefine species by means of interbreeding. Over many generations, more beneficial traits will become more _____ since the organisms with those traits are better able to survive and _____. Which of the following is TRUE about how environmental conditions have changed since the time life began on earth? Not so, writes Gordon Burghardt, the contemporary study of play finds it in animals from birds to spiders, and help makes sense of why for us humans play can be . 2. A scientist is studying embryos from two different species. What are the features of a highly evolved brain? Variation allows some individuals to do better than others, so those variations are selected. Do any monkey species have different races similar to humans? See Answer Were the solution steps not detailed enough? When Carolus Linnaeus first came up with his binomial nomenclature taxonomy, all individuals were grouped by morphology. races)? A geographically continuous population has a gene pool that is relatively homogeneous. What are the impli. This so-called junk DNA does not actually create proteins, but may influence how nearby genes are used. same species would not look different. Could individuals of a species look different today than individuals of the same species looked many generations ago? Which adaptation described below probably does not protect the plant from being eaten by herbivores? Human childhood is much longer than that of other animals; therefore, other animals rely only on their genetic information. It may create animals that cannot reproduce. In animals generally, how much variation do you expect to see within as compared to between different races of a single species? What makes modern humans (Homo sapiens) unique in terms of our biological and cultural adaptations? Why or why not? Could individuals of a species look different today than individuals of the same species did many generations ago? The males songs are in the same general frequency, but the phrasing is quite different, Campagna explains. 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. There are at least 4 different ways that humans have genetic variation, a. How do bacteria acquire genetic variation, and how does that differ from the mechanism by which humans acquire variation? Can certain traits in a population change because the environment changes? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. DDT is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. Miriam wanted a new pet. Amid extreme weather events, many grape growers ask themselves what they can do to adapt their vineyard for climate change. Do monkeys vary in similar ways? Yet why do some races seem to have darker (or lighter) skin tones than others? 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. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. 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. Pellentesque dapibus efficitur laoreet. To put this another way: all humans have the same genes, yet we do not look alike. Why do humans, animals, and plants have to evolve reproductive function? Yes, some individuals can change a little and pass those changes on to their offspring. This indicates that: A. B) glucose 9.) Plants and animals do not share a common multicellular ancestor. What genetic factors increase the resemblance between siblings? Which is important for evolutionary change and why? What is the reason for the phenotypic differences between individuals of the same species? All rights reserved. (a) convergent evolution (b) divergent evolution (c) evolutionary cyclicity (d) uniformitarianism. 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. Explain. Explain how the mechanisms of evolution, such as natural selection, would be at play in the changing of human genes. First, the two species would need to be geographically isolated from each other. a) Yes, all individuals can change a little and pass those changes on to their offspring. Do tarantulas make webs like other spiders? Morphology is how an individual looks. Thats because females of all the capuchino species look identicalits often impossible to tell them apart, even in the hand. Would you expect the DNA of the goat to be more similar to? These ducks spent time on both land and water. A scientist is researching how to cure a type of blindness that is caused by a mutation in a gene. In what ways is culture similar between human and nonhuman primates? Using one of these four ideas, explain why you do not look like another person in this room. races)? Why or why not? Explain why only populations evolve but individuals do not. 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. Q7. For example, a shark uses its electrosensory and olfactory organs predominately to interact with its environment, whereas primates are heavily dependent upon vision. What are the 2 main reasons for variation between organisms of the same species? The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands seve Q: Q6.5. Explain how differences in skin color of humans have been selected for in different environments. b. Fossils of organisms that lived many years ago, and DNA from the remains of organisms that lived many years ago. offspring. a. What is the reason for the phenotypic differences between individuals of the same species? 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. What is the scientific reason why people around the world have different skin colors? Merlin Bird ID Can Tell You, published in the journal Science Advances, Repeated divergent selection on pigmentation genes in a rapid finch radiation. The three conditions that must be met for evolution to occur by natural selection are that there must be variation, there must be selection, and there must be inheritance of variation. If there is NO VARIATION in shell thickness within a population of snails, and no mutations occur, what happens to shell thickness in (Hide this section if you want to rate later). What are the similarities and differences between humans and other mammals such as monkeys and apes? There are some phenotypic differences among human populations that reflect adaptation to different environments. One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. a) Yes, all individuals can change a little and pass those changes on to their offspring. Could individuals of a species look different today than individuals of the same species did many generations ago? A. The descendants would look the same as the original individuals because species do not change. Campagna says, What were learning from these studies is that you dont need to be different across the entire genome to look different and behave differently. We will look at multiple ways to update your . Why is it that chimpanzees have 99% the same DNA as humans, yet the one percent distinguishes us to such a degree? Are 2 methylpentane and 3 methylpentane position isomers? Could individuals of a species look different today than individuals of the same species looked many generations ago? Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Yes, some individuals with certain traits are more likely to survive and pass Why do humans have some genes in common with bacteria, more genes in common with fish, and even more genes in common with mice? Use the following passage to answer the next two questions. Q6.5. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Why does natural selection only act on heritable variation? Humans have genetic diversity than chimpanzees. Assume that a population of one of these finch . A researcher observed that lizards living in areas with predatory birds have longer horns than those in areas with no predatory birds. To put this another way: all humans have the same genes, yet we do not look alike. b. greater the mutation rate will be. Why or why not? Is it possible that two different species, either by chance or natural selection, evolve to be the same species? What is the reason for the phenotypic differences between individuals of the same species? Which of the following is REQUIRED for the process of evolution by natural selection to occur? 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. Why do people (and most other species) have two copies of each chromosome? c)Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. why or why not? These separate evolutionary events led to different methods of achieving complex multicellularity in these groups. Pellentesque dapibus efficitur laoreet. Some force other than environmental conditions must be acting upon the males to produce so many species. Could individuals of a species look different today than individuals of the same species did many generations ago? O Yes, some individuals can change a little and pass those changes on to their offspring. What is the connection between the size of a snail and their ability to reproduce, when around birds? In what ways is the human brain different from other species (non-primate and non-human primate)? There is some debate over whether individuals or the population adapt to change. Lorem ipsum dolor sit amet, consectetur adipiscing elit. The differences consistently fell in areas near color genes in sections of the genome once considered junk. Scientists have since learned that these areas of the genome, which once appeared to have no purpose, can play crucial roles in regulating genes and modifying their effects. Could individuals of a species look different today than individuals of the same species did many generations ago? 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. If mutations arise that affect shell thickness within a snail population, then with crabs present, those mutations:Will result in offspring having thicker shells than their parents.Will result in offspring having thicker or thinner shells than their parents.Will happen because the parents choose to give them to their offspring.Will occur because crabs are present and snails need protection against predation.Q6.4. 2007-2023 Learnify Technologies Private Limited. Could individuals of a species look different today than individuals of the same species did many generations ago? Fusce dui lectus, congue v, e vel laoreet ac, dictum vitae odio. On average, what effect does genetic drift have on the differences between populations? The light moths declined in number and the dark colored moths increased in number. Question: could individual of a species look different today than individual of the same species did many generations ago? Q5. Why or why not? 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. c. Humans have similar sets of biological needs d. Humans face simila. What are they doing that causes a shift in the gene frequencies for "desirable" traits? (b) Which is important for evolutionary change and why? Do animals have the same blood groupings? Mediterranean climates like California, with hot and dry summers and cold wet winters . No, species do not change even after many generations, so individuals of the same species would not look different. In what ways has the evolutionary biology of other animals been altered by the presence of human beings? so you can get an accurate answer to your question. Peppered moths have wings that vary in color, ranging from white to dark gray. A 50.0 mL sample of drinking water was found to contain 1.25 \mug of arsenic. Human-made tools of prehistoric times 2.5 million years ago show that humans began to memorize information in steps. Do humans experience interspecific competition? Explain. The different color genes could be turned on at a certain time, or turned off, be slightly on, or slightly off. b. mutation. b) Yes, some individuals can chang; Compared to sexual reproduction, asexual reproduction _____. Experts are tested by Chegg as specialists in their subject area. a. populations; individuals b. genes; traits c. plants; animals d. traits; genes. Explain why only populations evolve but individuals do not. Popcornflix is a free over-the-top streaming service out there within the US and Canada. 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. The histograms below show data obtained by a student playing crab in the Darwinian Snails simulation . O Why is it that physical distinction between genders is more evident in humans than it is in other animals, say, a cat? Which of the following is REQUIRED for the process of evolution by natural selection to occur?Offspring must be similar to their parents due to share genes.There must be a sudden environmental change.There must be a predator preying on the species.One or more species must have recently been introduced to the region.Q6.7.
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