b. What is the scientific reason why people around the world have different skin colors? All rights reserved. B. Consider also that the environment that this organism lives in changes for the worse. This observation led her to hypothesize that longer horns offer more protection against predation than do shorter horns. a) Yes, all individuals can change a little and pass those changes on to their offspring. B. All of the following are protective adaptations except one. Why or why not? Describe a study an evolutionary biologi. those traits on to their offspring. Changes in evolutionary pathways are related to changes in gene structure and changes in cultural evolution. e. all living organisms, with just a few exceptions. Donec aliquet. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Genetic variation within a species can result from a few different sources. 1. Yes, all individuals can change a little and pass those changes on to their offspring. O Yes, some 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 looked many generations ago? Scientists have estimated that there are around 8.7 million species of plants and animals in existence. Which of the following is REQUIRED for the pricess of evolution by natural selection to occur? 1. Donec aliquet. Could a solenoid suspended by a string be used as a compass? In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation. 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. same species would not look different. If you're looking for the answer to the question: Could individuals of a species look different today chegg? Human childhood is much longer than that of other animals; therefore, other animals rely only on their genetic information. Lorem ipsum dolor sit amet, consectetur adipiscing elit. 2. c. Its populations can interbreed. In evolution, why is it important that individuals vary from each other? The most well-known example is a group of more than a dozen finch species in the Galapagos. Pellentesque dapibus, congue vel laoreet ac, dictum vitae odio. Be s. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Why are animals shaped differently in cooler climates than in warmer ones? A few years went by without much rain, and the only species of tree that survived had large seeds. Are DNA mutations and natural selection two different mechanisms of evolution? 2017. Genotype is the written instructions for appearance based on the DNA. The male finches are the same shape and size but wear different combinations of about five colors. Biologists believe that new species evolve from existing species by a process called natural selection. Why does natural selection only act on heritable variation? Wing bone structures of penguins and other birds are functionally different, but homologous. Second, the two species would need to have a significant difference in their reproductive capabilities. Why do many animals have different colored feet than the rest of their bodies? Could individuals of a species look different today than individuals of the same species did many generations ago? B. 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. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. When Carolus Linnaeus first came up with his binomial nomenclature taxonomy, all individuals were grouped by morphology. Yes, all individuals can change a little and pass those changes on to their offspring. The amount of webbing on ducks' feet had no relationship with the amount their parents had. Was the final answer of the question wrong? 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. Could individuals of a species look different today than individuals of the same species did many generations ago? What makes humans so different from the rest of the species on the planet? 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. And their choices may not be entirely governed by genetics. Why or why not? What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, BioEffRad-StudyGuide2019-Section7- Models of. What is the connection between the size of a snail and their ability to reproduce, when around birds? Could individuals of a species look different today than individuals of the same sspecies did many generations ago? Do humans experience interspecific competition? Yet why do some races seem to have darker (or lighter) skin tones than others? No, species do not change even after many generations, so individuals of the same species would not look different. What might scientists say about the human, seal, bird, and bat based on this evidence? If they are met, natural selection automatically results. Which of the following is REQUIRED for the process of natural selection to occur? It is possible that the answer to this question could be found through further research. Every plant or animal belongs to a species. copyright 2003-2023 Homework.Study.com. 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. 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. Mice & Keyboards. Variation allows some individuals to do better than others, so those variations are selected. After many generations, will all individuals in the population have the same adaptive trait? 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. In this sense, a species is the biggest gene pool possible under natural conditions. This changed the way that humans reproduced and evolved, which in turn, changed the way that humans look today. How does the human body's molecular system differ from dogs? B. a) Yes, all individuals can change a little and pass those changes on to their offspring. What characteristics do you see in humans, either anatomically or behaviorally, that are still shared with other primates? Could two genetically perfect humans have all the genetic diversity needed for a species? b) Yes, some individuals can change a little and pass those changes on to their offspring. Why are there so many different ways to define a species? The theory of evolution states: A. better-adapted organism reproduces at a higher rate. A scientist is studying embryos from two different species. Could individuals of a species look different today than This is an example of a. sympatric speci, How are humans evolving today? Many years ago, more than 13 different species of birds migrated to the islands. *. Does the question reference wrong data/reportor numbers? 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. If the current in the outer solenoid is changing at a rate I2/t\Delta I _ { 2 } / \Delta tI2/t, what is the magnitude of the induced emf in the inner solenoid? Why do all animals, both vertebrates and non-vertebrates, share the same hox genes? 20 hours ago, Posted Give an example of how these mechanisms have impacted evolution in a species. Now, another group of South American finches known as capuchino seedeaters is helping scientists learn about how, and how fast, evolution works. It's not clear based on the DNA evidence whether the 13 species arose from a single migration of one species or multiple migrations of several species from the mainland to the islands. Which of the following do scientists use to learn about organisms that lived many years ago but are no longer alive today? Yes, all individuals can change a little and pass those changes on to their offspring. Why has nature decided to create exactly two genders (for humans and animals) and not 3 or 5 for example? Donec aliquet. not? B. organisms change by acquired characteristics. 1) Yes, all ind. Non-human primates have a lot to tell us about ourselves and our origins. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Why is it that humans have three different blood groups: A, B, and O? Q6.5. Why or why not? Humans share the same genetic code with: a. just other vertebrates. Speciation is the process by which new species form. Q8. There is fossil evidence that this . For example, when humans first migrated to North America, they were faced with a new environment with different plants and animals. If variations or mutations are extreme enough, new species can result. O No, species do not change even after many generations, so individuals of the Show more There is no way to know for sure if individuals of a species could look different today, but it is an interesting topic to consider. 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 . 2. The billions of human beings living today all belong to one species: Homo sapiens. Do animals have the same blood groupings? \\ do not interbreed extensively. What are the impli. Q7. a. This is because the mutation would be passed down to future generations, and over time, the appearance of the species would change. Some scientists believe that the answer is yes, while others believe that the answer is no. 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. b) Yes, some individuals can chang; What makes an animal an animal? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. d) No, species do not change even after many generations, so individuals of the same species would not look different. 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 A species is often defined as a group of individuals that actually or potentially interbreed in nature. O No, species do not change even after many generations, so individuals of the same species would not look different. Finches with small beaks ate all of the small seeds, leaving only bigger seeds. Give an explanation for your answer. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. 2. 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 . Q6.5. a. We will look at multiple ways to update your . Homo sapiens share a common ancestor with primates. Did doc holliday actually shoot johnny ringo? The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. In what ways is domestication (selection by humans) similar to natural selection, and in what ways is it different? 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. Plants and animals do not share a common multicellular ancestor. 1. Evolutionary biologists often compare the morphological features of different organisms to look for relationships to determine how they have changed over time. Homo neanderthalensis ("Man from the Neander Valley"): Also known as Neanderthals, these humans lived in western Asia and Europe. In this position, she presents the maximum cross-sectional area and thus maximizes the air-drag force on her. 0.48. Submit Human-made tools of prehistoric times 2.5 million years ago show that humans began to memorize information in steps. a) Variation b) Normalization c) Extinction. Is it possible that two different species, either by chance or natural selection, evolve to be the same species? Are age and gender independent variables? d. greater the chance one will go extinct. How is this best explained? Some force other than environmental conditions must be acting upon the males to produce so many species. What are the 2 main reasons for variation between organisms of the same species? Explain. c. just other multicellular animals and plants. Another theory is that individuals of a species could look different today if they had different genetic mutations. 3. Choose an animal and. Could individuals of a species look different today than individuals of the same species did many generations ago? CHOOSE ALL THAT APPLY! Theyre very easy to distinguish. (Listen to recordings from our Macaulay Library archive: Dark-throated Seedeater, Marsh Seedeater, and Tawny-bellied Seedeater.). Where the Dark-throated Seedeater has a black throat, for instance, the Marsh Seedeaters throat is white and the Tawny-bellied Seedeaters is the same tawny color as its belly. What makes modern humans (Homo sapiens) unique in terms of our biological and cultural adaptations? A food source must disappear. Scientists look for those rare instances when a species suddenly diverges, or radiates into multiple forms, each with a different appearance or behavior. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. How does competition among humans differ from competition in other animal species? c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Q6.5. According to this definition, one species is distinguished from another when, in nature, it is not possible for matings between individuals from each species to produce fertile offspring. \\ c. They have the same phenotype. Most ducks had less webbing on their feet than their parents. 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. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. How are the striking similarities among genes that govern development in widely differing species strong evidence for evolution? The technology behind the atomic bomb only exists because of a cooperative hive mind: hundreds of scientists and engineers. Near industrialized areas, black powder covered surfaces, including the moth habitat. How are these two copies similar? Question: Q6.4. Which form of gene technology would be the best for this example? The correct answer is (c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. c. more they will differ from one another in adaptations. Explain. There are some phenotypic differences among human populations that reflect adaptation to different environments. 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. 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. c)Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Play is dismissed as a human projection or as functional practice for adulthood that only 'higher" mammals are capable of. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. One or more species must have recently been introduced to the region. Why or why not? d. Fertile offspring are produced. Would you expect the DNA of the goat to be more similar to? No, species do not change even after many generations, so individuals of the same species would not look different. To put this another way: all humans have the same genes, yet we do not look alike. 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? Could individuals of a species look different today chegg? These ducks spent time on both land and water. The bacteria have become resistant over several generations. _______ among populations can keep them similar to one another. What is genetic recombination? How different are the various functional traits among the different species of deer? 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. Could individuals of a species look different today than individuals of the same species did many generations ago? B) Low levels of genetic variation may make hybrid species more likely, so neither species will go extinct. 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. Lovette. There are two layers to physical appearance - genotype and phenotype. c. natural selection. Why do human bodies look so different across the planet? We are, in fact, remarkably similar. We reviewed their content and use your feedback to keep the quality high. I will post some . Be as specific as possible. Could individuals of a species look different today than individuals of the same species did many generations ago? 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. Which of the following statements support the Theory of Evolution? Many animals share similar characteristics with other animals and also share some features with humans. The number of this type of rodent will decrease. 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. Why or why not? Why is it necessary to take enough time before making a decision? Which is important for evolutionary change and why? 1. Experts are tested by Chegg as specialists in their subject area. Which of the following is NOT an example of gene technology? 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. Consider a population that lacks variation and no individual has any advantageous traits.
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