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 . b. Why or why not? I'm watching with my students! People who are heterozygous for the sickle-cell allele: Are not susceptible to either sickle-cell anemia or malaria. Why is it harder for human babies to be delivered than other animals? Why? The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands seve Q: Q6.5. Bio diversity refers to every living thing, including plants, bacteria, animals, and humans. Over many generations, more beneficial traits will become more _____ since the organisms with those traits are better able to survive and _____. 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. 2 years ago, Posted \\ do not interbreed extensively. \\ c. They have the same phenotype. How are humans able to affect and alter the phenotypes of other organisms through artificial selection? Peppered moths have wings that vary in color, ranging from white to dark gray. b. mutation. 2003-2023 Chegg Inc. All rights reserved. However, humans still have significant differences with every species that exists on Earth. Selection is the way that different traits affect an organism's ability to survive and reproduce. 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 site is using cookies under cookie policy . How do animals that live in different environments meet their need for efficient gas exchange? The smallest and largest snails would be the most likely to reproduce. Yes, when the environment changes, individuals with certain inherited traits survive and will be able to reproduce. Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume. Do humans experience interspecific competition? A species is a population of plants or animals that can breed to produce offspring that can then produce offspring themselves. Lorem ipsum, amet, consectetur adipiscing elit. A. no way to pass environment or acquired characteristics to offspring, only genes. Nam risus ante, dapibus a molestie consequat, ultrices a. What are selection and genetic drift, and how are they different from each other? Why do different genders of the same animal evolve differently? c)Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Propose an explanation for the return of the light-colored peppered moth population. For example, chimpanzees and humans, the skulls of which are shown in Figure 12.2. Do tarantulas make webs like other spiders? 2 are very similar genetically, sharing 99 percent 1 of their genes. New species can eventually emerge with all these new adaptations over generations. Are humans exempt from natural selection because of the technological nature of our society? Which of the following is NOT an example of gene technology? or nec facilisis. In contrast, humans have many more microRNA molecules (miRNAs) than these animals. copyright 2003-2023 Homework.Study.com. Explain why a single human body is considered to be a mega-diverse ecosystem. 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. 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. (a) Do humans experience interspecific competition? Can certain traits in a population change because the environment changes? Be as specific as possible. Genetic variations that alter gene activity or protein function can introduce different traits in an organism. 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.)? As many years went by, the environment changed such that the aquatic food sources were much more plentiful than those on land. Difficulties with Darwin's concept tempted a number of people to try to redefine species by means of interbreeding. The light moths declined in number and the dark colored moths increased in number. Using one of these four ideas, explain why you do not look like another person in this room. Yes, all individuals can change a little and pass those changes on to their offspring. Explain. Variation allows some individuals to do better than others, so those variations are selected. Are DNA mutations and natural selection two different mechanisms of evolution? Their feet are webbed and this trait makes them fast swimmers. Do monkeys vary in similar ways? Q6.5. Why don't other animals have as many genetic mutations as humans? In evolutionary terms, thats life in the fast lane. On demand UK streaming service with common turnover of in style free movies. A researcher observed that lizards living in areas with predatory birds have longer horns than those in areas with no predatory birds. For example, if a species of fish was only exposed to freshwater, they might look different than if they were exposed to saltwater. What is genetic recombination? Could individuals of a species look different today than individuals of the same species did many generations ago? Many years ago, more than 13 different species of birds migrated to the islands. Natural selection makes an adaptive trait more common in a population. Genotype is the written instructions for appearance based on the DNA. Why do humans have some genes in common with bacteria, more genes in common with fish, and even more genes in common with mice? so you can get an accurate answer to your question. Pellentesque dapibus efficitur laoreet. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Give an explanation for your answer. 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. Traits must be inherited from one generation to the next. What are the characteristics that all mammals have in common? 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. \\ vary only very slightly in appearance. Submit 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. All other trademarks and copyrights are the property of their respective owners. Could individuals of a species look different today than individuals of the same species did many generations ago? 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. How are animals that are different species able to reproduce? Lore

why or why not? Science Advances. From the Autumn 2017 issue of Living Bird magazine. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. Why is our DNA so similar to all other living organisms? offspring. The histograms below show data obtained by a student playing crab in the Darwinian Snails simulation . Yes, some individuals with certain traits are more likely to survive and pass Evolution is a biological term that can . A scientist is studying embryos from two different species. (a) convergent evolution (b) divergent evolution (c) evolutionary cyclicity (d) uniformitarianism. Which of the following is REQUIRED for the process of evolution by natural selection to occur? b) Yes, some individuals can change a little and pass those changes on to their offspring. Eric Rieger 0:00 Hello gut check project fans and KBMD Health family, I hope that you are having a great day today to host Eric Rieger soon to be joined by my other host, Dr. Kenn A mutation is harmful to an organism if it. 3. Many generations later, almost all the birds had the slightly larger beaks. What is the difference between genetic diversity and genetic variation? Q6.5. Why do all animals, both vertebrates and non-vertebrates, share the same hox genes? Done, onec aliquetpulvinar tortor nec facilisis. 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. 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. Why does natural selection only act on heritable variation? Every plant or animal belongs to a species. Near industrialized areas, black powder covered surfaces, including the moth habitat. Q6.1. Explain why only populations evolve but individuals do not. They can help us get to the root of how biological diversity has evolved. Campagna and collaborators were the first to show that this finch radiation is relatively recent and still ongoing. Pellentesque dapibus efficitur laoreet. How does competition among humans differ from competition in other animal species? How do you capture a snapshot of evolution as its happening? How genetically different must a mutated individual be to be considered a different species? All humans carry the same genes. How is it the same? The male finches are the same shape and size but wear different combinations of about five colors. A. If they are met, natural selection automatically results. Nam lacinia pulvinar tortor nec facilisis. 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. Yes, some individuals can change a little and pass those changes on to their offspring. Why are humans so different from other animals? 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. To put this another way: all humans have the same genes, yet we do not look alike. Which of the following is REQUIRED for the pricess of evolution by natural selection to occur? Individuals of the same species generally \\ experience prezygotic barriers to reproduction. There must be a sudden environmental change. Q6. a) Yes, all individuals can change a little and pass those changes on to their offspring. Q6.5. Why would competition between two animals of the same species likely be more intense than competition between two animals of different species? Is it possible for two different genes to imply different phylogenetic relationships among a group of species? Why or why not? 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. However, only around 1.2 million species have been identified and described so far, most of which are insects. Pellentesque dapibus efficitur laoreet. How fast can tarantulas move? _______ among populations can keep them similar to one another. b) Yes, some individuals can chang; There are a number of factors that could affect whether a species evolves. This indicates that: A. Could individuals of a species look different today than individuals of the same species did many generations ago? To continue further with th. Finally, the two species would need to be unable to interbreed. O No, species do not change even after many generations, so individuals of the Will evolution occur if there is no variation in a population, if the only variation is acquired and not inherited or if all progeny survive and equally reproduce? In what ways is domestication (selection by humans) similar to natural selection, and in what ways is it different? a) Yes, all individuals can change a little and pass those changes on to their offspring. Variation allows some individuals to do better than others, so those variations are selected. In evolution, why is it important that individuals vary from each other? See Answer Consider also that the environment that this organism lives in changes for the worse. A few mosquitoes in the population were resistant to DDT before it was ever used. Choose an animal and. Q8. What is culture and how does culture differ between human and nonhuman primates? 2) The biological species concept. Posted In what ways is the human brain different from other species (non-primate and non-human primate)? Nam lacinia pulvinar tortor nec fiscing elit. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. How do changes in DNA affect changes in adaptations? 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? Donec aliquet. c. more they will differ from one another in adaptations. 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. In animals generally, how much variation do you expect to see within as compared to between different races of a single species? This textbook can be purchased at www.amazon.com. Q7. In this position, she presents the maximum cross-sectional area and thus maximizes the air-drag force on her. 2. 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. 0.48. B. organisms change by acquired characteristics. same species would not look different. Donec aliquet. 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. 2017. a) Yes, all individuals can change a little and pass those changes on to their offspring. 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. Explain. If variations or mutations are extreme enough, new species can result. In genetics, two organisms are part of the same population if: \\ a. a)Yes, all individuals can change a little and pass those changes on to their offspring. 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). Scientists look for those rare instances when a species suddenly diverges, or radiates into multiple forms, each with a different appearance or behavior. In biology, what is an adaptation? Happy face spider photos courtesy of Rosemary Gillespie, UC . Could individuals of a species look different today than individuals of the same species did many generations ago? Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. There must be a predator preying on the species. Its possible that in these rapid radiations, whats changing is when and how much of these ingredients are being added.. What is the reason for the phenotypic differences between individuals of the same species? 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 or why not? Do monkeys vary in similar ways? This is a question that has been debated for many years. No. Which of the following is an example of genetic engineering? Is it a survivor bias? If monkeys and humans evolved from a common ancestor, why did we evolve differently? Another theory is that individuals of a species could look different today if they had different genetic mutations. Which kinds of animals are most different from each other: humans or chimpanzees? How can making good decisions help people? How are humans related to primates? A disease attacks those plants and wipes them out. a. B) Low levels of genetic variation may make hybrid species more likely, so neither species will go extinct. All rights reserved. Yes, all individuals can change a little and pass those changes on to their offspring. A. Why are these genes similar but not identical? Humans have about the same number of protein-coding genes as do animals such as tunicates that have a very simple body form and few neurons. \\ e. They are the same species and a. We can learn a lot from these instances of fast speciation, says Cornell Lab scientist Leonardo Campagna, who has studied these finches for 10 years. Gene flow, the movement of alleles across a species' range, is relatively free because individuals can move and then mate with individuals in their new location. A 50.0 mL sample of drinking water was found to contain 1.25 \mug of arsenic. Createyouraccount. What is genetic recombination? A characteristic of an organism that can change in res. To put this another way: all humans have the same genes, yet we do not look alike. What are the noteworthy differences between the two? Yes, some individuals can change a little and pass those changes on to their offspring. Question Could individuals of a species look different today than individuals of the same species did many generations ago? A species is often defined as a group of individuals that actually or potentially interbreed in nature. Now, it doesn't reach the same kind of headlines because there's many different infections and different parts of the body and different bacteria. They would do this by breeding a Poodle with a Husky. This is where terms like 'heterozygous' come into play. ways in which gr12 learners could view changes after school in a positive manner, 3 ways relationships can be positive in someones well being. Explain why only populations evolve but individuals do not. Explain. What are the general characteristics of animals? Homo sapiens share a common ancestor with primates. What characteristics do you see in humans, either anatomically or behaviorally, that are still shared with other primates? Question: could individual of a species look different today than individual of the same species did many generations ago? 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. Why is sexual selection likely to result in more rapid changes in phenotype than typical natural selection in the same population? Could individuals of a species look different today than individuals of the same species did many generations Which genes are different among species is more important than just the number of genes that are different., Available for everyone,funded by donors like you. 2. Why or why not? How do genetic modification variations likely differ from genetic sexual reproduction variations? Be sure to discuss both the evolutionary implications/benefits of light skin pigmentation and dark skin pigmentation. No, species do not change even after many generations, so individuals of the same species would not look different. 1. Could individuals of a species look different today than individuals of the same species did many generations ago? B) glucose Be s. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. All rights reserved. 2007-2023 Learnify Technologies Private Limited. Their feet are webbed and this trait makes them fast swimmers. Get access to this video and our entire Q&A library, Who Was Charles Darwin? 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. Could individuals of a species look different today than What will most likely happen to the population in terms of natural selection? This is because the mutation would be passed down to future generations, and over time, the appearance of the species would change. Learn about Charles Darwin's background, what theory he is known for, and what natural selection is. The existence of play in non-human animals is a direct challenge to old-fashioned scientific ideas. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. \\ have many common physical and behavioral characteristics. A species of bird ate many types of seeds, each type coming from a different species of tree. Could individuals of a species look different today than individuals of the same species did many generations ago? All of the following are protective adaptations except one. And their choices may not be entirely governed by genetics. Most people today would classify such forms as different species, and none of these sibling species mate with one another in normal circumstances. Reduction of the burning of fossil fuels (coal). We will look at multiple ways to update your . 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 Morphology is how an individual looks. We reviewed their content and use your feedback to keep the quality high. What might scientists say about the human, seal, bird, and bat based on this evidence? Using one of these four ideas, explain why you do not look like another person in this room. Recently, more and more farmers have discovered that their fields have Roundup-resistant pigweed growing along with their crop. Why or why Humans have genetic diversity than chimpanzees. a. Q6.5. c. Its populations can interbreed. 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. (b)(b)(b) If the drag force is given by bv2b v^2bv2, what is the value of bbb ? Some force other than environmental conditions must be acting upon the males to produce so many species. Yes, some individuals can change a little and pass those changes on to their offspring. In what ways is culture similar between human and nonhuman primates? Genetic variation within a species can result from a few different sources. Over time, the genetic makeup of the two resulting populations becomes more and more different, until each population becomes a separate species. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. A few years went by without much rain, and the only species of tree that survived had large seeds. Describe a study an evolutionary biologi. 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. 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. Which of the following is NOT a potential benefit of genetic engineering? b. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. 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. 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. When we adapt, or evolve over time, does it happen through genetic mutation or something different? races)? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. There is fossil evidence that this . Why does natural selection occur more in animals than humans? B. Olfspring must be similar to their parents due to shared genes. Discuss at least four characteristic traits of primates that other mammals do not share. offspring. \\ b. Over one or two generations, beak size among finches increased. DDT is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. In evolution, why is it important that individuals vary from each other? Become a Study.com member to unlock this answer! Homo neanderthalensis ("Man from the Neander Valley"): Also known as Neanderthals, these humans lived in western Asia and Europe. The central ideas of evolution are that life has changed over time and different species share common ancestors. AnswerGoat.com does not many any warranties about the accuracy, completeness or reliability of this information. One or more species must have recently been introduced to the region. Fusce dui lectus, congue vel laoreet ac, d, congue vel laoreet ac, dictum vitae odio. Could individuals of a species look different today than individuals of the same species did many generations ago? not? Why or why not? A surprisingly small population could save our species. What is biological evolution? For example, a shark uses its electrosensory and olfactory organs predominately to interact with its environment, whereas primates are heavily dependent upon vision. What is the reason for the phenotypic differences between individuals of 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)?

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