B. organisms change by acquired characteristics. How do humans influence animal evolution? A certain species of rodent eats only one type of plant. Humans all share the same cultural knowledge and beliefs. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. According to the diagram, which of the following statements is true? 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? What additional genetic factors increase the resemblance between siblings? a) Yes, all individuals can change a little and pass those changes on to their offspring. There are at least 4 different ways that humans have genetic variation, a. The theory of evolution states: A. better-adapted organism reproduces at a higher rate. 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. Experts are tested by Chegg as specialists in their subject area. 1. If we share 99% of the DNA of a chimpanzee, why are we so different than the chimpanzee? It is reproductively isolated from other species. And yet, at the genetic level they are up to 99.97% identical. then you've come to the right place! To put this another way: all humans have the same genes, yet we do not look alike. A mutation is harmful to an organism if it. There must be a predator preying on the species. For example, these happy face spiders look different, but since they can interbreed, they are considered the same species: Theridion grallator. Explain why only populations evolve but individuals do not. b. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Pellentesque dapibus efficitur laoreet. Why didn't other animals evolve to become closer to humans in intelligence? Campagna thinks that force comes from females as they choose among competing males based on color and song. 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 . It occurs when groups in a species become reproductively isolated and diverge. If so, why did we evolve this way? Humans rely on other organisms for survival; however, all other organisms would be better off without humans. What makes humans so different from the rest of the species on the planet? There is no definitive answer to this question, but there are some interesting theories that can be considered. On average, what effect does genetic drift have on the differences between populations? Plants and animals do not share a common multicellular ancestor. A major difference among finch species is in their beaks: both size and shape vary greatly.Assume that a population of one of these finch species is undergoing evolution by natural selection with respect to beak size and shape. There are many different types available on the market today so make sure you research each one carefully before deciding which ones would work best for your pet. Why or why not? A geographically continuous population has a gene pool that is relatively homogeneous. Lore
This is an example of a. sympatric speci, How are humans evolving today? Which of the following explains what might happen next? Question Could individuals of a species look different today than individuals : 425869. Some populations are innately superior to others, because they have what it takes to prevail in those environments. D) not all mutations affect an entire species. 2017. 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. b. Their songs are different, too. 1. Which of the following do scientists use to learn about organisms that lived many years ago but are no longer alive today? or nec facilisis. Yes, all individuals can change a little and pass those changes on to [] What are the similarities and differences between humans and other mammals such as monkeys and apes? No, species do not change even after many generations, so individuals of the same species would not look different. 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. 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. See Answer 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. 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. Popcornflix is a free over-the-top streaming service out there within the US and Canada. Why or why not? Because scientists are witnessing capuchino finch evolution in mid-stride, the outcome is still a mystery. . Q8. Would you expect the DNA of the goat to be more similar to? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Right now, theyre considered separate species because the color and song of males keep them from widely interbreeding. Most ducks had more wobbing on their foet than their parents. a) Yes, all individuals can change a little and pass those changes on to their offspring. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Yes, all individuals can change a little and pass those changes on to their offspring. They were more muscular than we were and they had bigger brains than we did (or do today). Lorem ipsum dolor sit amet, consectetur adipiscing elit. Which of the following is TRUE about how environmental conditions have changed since the time life began on earth? Yes, some individuals can change a little and pass those changes on to their offspring. Q6.5. These ducks spent time on both land and water. It is believed that humans started to transfer information from tools to symbols and from symbols to letters from generation to generation. If they are met, natural selection automatically results. c) Yes, some. Fontana, P.L. 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. How are modern humans distinct from Paranthropus robustus? Why or why not? 2 are very similar genetically, sharing 99 percent 1 of their genes. Lorem ipsum dolor sit amet, consectetur adipiscing elit. 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. O Yes, some individuals can change a little and pass those changes on to their All of the following are protective adaptations except one. Pellentesque dapibus efficitur laoreet. Explain. The birds' beaks varied in size, with some individuals having slightly smaller beaks and others having slightly larger beaks. The central ideas of evolution are that life has changed over time and different species share common ancestors. Why did some primate species develop sexual swellings while others didn't? How does evolution occur in a species? Do humans experience interspecific competition? Why is sexual selection likely to result in more rapid changes in phenotype than typical natural selection in the same population? There must be a sudden environmental change. Horned lizards use their horns to defend against predatory birds. Why do many animals have different colored feet than the rest of their bodies? David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, BioEffRad-StudyGuide2019-Section7- Models of. Which of the following is not part of how we define a species? Q6.5. ago? Get access to this video and our entire Q&A library, Human Evolution Lesson for Kids: Timeline & Stages. Are all americans equally able to become engaged in government what factors make it more possible fo? Why didn't humans evolve to hibernate like many other mammals? 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. b. greater the mutation rate will be. Many generations later, almost all the birds had the slightly larger beaks. Doctors find that a certain type of antibiotic is no longer effective against the type of bacteria it used to kill. Q7. Is it possible that two different species, either by chance or natural selection, evolve to be the same species? Transitional fossils show that the ancestral horse was much smaller than the modern horse. Explain how the mechanisms of evolution, such as natural selection, would be at play in the changing of human genes. Humans shape their environment in ways that other organisms cannot. For example, when humans first migrated to North America, they were faced with a new environment with different plants and animals. 9.) Peppered moths have wings that vary in color, ranging from white to dark gray. (EQ: 9, 13) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Explain how animal behaviors, including human behaviors, are governed by genetic inheritance. 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. (a) Two or more unrelated species change independently of each other and the environment in which they live (b) Two or more related species change to become less similar due to living in different environments (c) Two or more. 2. Humans shape their environment in ways that other organisms cannot. Of course, the source of that female preference probably resides somewhere in the DNA, too. a) Yes, all individuals can change a little and pass those changes on to their offspring. In this sense, a species is the biggest gene pool possible under natural conditions. Do monkeys vary in similar ways? Could individuals of a species look different today than individuals of the same species did many generations ago? What is the scientific reason why people around the world have different skin colors? (opens in new tab) A person walking in the Mojave Desert during the post-apocalyptic Wasteland Weekend festival on Sept. 28, 2019. No, species do not change even after many generations, so individuals of the same species would not look different. Assume that a population of one of these finch . Fusce dui lectus, congue v, e vel laoreet ac, dictum vitae odio. Their feet are webbed and this trait makes them fast swimmers. What makes humans so different from the rest of the species on the planet? Most people today would classify such forms as different species, and none of these sibling species mate with one another in normal circumstances. Our experts can answer your tough homework and study questions. Finally, discover cousin species like Homo neanderthalensis. B) not all mutations are beneficial. Humans have genetic diversity than chimpanzees. Which adaptation described below probably does not protect the plant from being eaten by herbivores? What is the reason for the phenotypic differences between individuals of the same species? The number of this type of rodent will decrease. A scientist is studying embryos from two different species. Consider the following hypothetical scenario: An ancestral species of duck had a varied diet that included aquatic plants and terrestrial plants and insects. why or why not? Could individuals of a species look different today than individuals of the same species did many generations ago? D. modifications in an individual are caused. This changed the way that humans reproduced and evolved, which in turn, changed the way that humans look today. _______ among populations can keep them similar to one another. Yes, when the environment changes, individuals with certain inherited traits survive and will be able to reproduce. d. greater the chance one will go extinct. What is the reason for the phenotypic differences between individuals of the same species? Yes, some individuals with certain traits are more. Explain why a single human body is considered to be a mega-diverse ecosystem. Members from different species are not able to give rise to viable offspring. Over time, the genetic makeup of the two resulting populations becomes more and more different, until each population becomes a separate species. The amount of webbing on ducks' feet had no relationship with the amount their parents had. Which is important for evolutionary change and why? Skin color is not directly tied to race. The longer that two populations are kept from interbreeding, the: a. more recessive alleles will be expressed. After many generations, will all individuals in the population have the same adaptive trait? Describe a study an evolutionary biologi. why did dinosaurs evolve earlier than humans? Why or why not? In evolution, why is it important that individuals vary from each other? How has evolutionary biology demonstrated that adaptations arise through selection acting on genetic variation? Finches with small beaks ate all of the small seeds, leaving only bigger seeds. Which form of gene technology would be the best for this example? Do any of our fossil relatives or other species share some aspects of this unique set of characteristics? Why is our DNA so similar to all other living organisms? races)? Mediterranean climates like California, with hot and dry summers and cold wet winters . Conditions have changed in significant ways everywhere on earth, with some of these changes happening suddenly and others more gradually. A. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. What changes occur gradually over time that indicate the population is evolving?Within their lifetimes, some individual finches beaks change in size or shape.The proportions of finches having different beak sizes/shapes change across generations.Each finchs learned ability to use its beak is automatically passed on to its offspring.All finches in each new generation develop the same new, improved beak size and shape.Q6.5. This can result from random processes called genetic drift, or a more adaptive mechanism called natural selection. Recently, more and more farmers have discovered that their fields have Roundup-resistant pigweed growing along with their crop. AnswerGoat.com does not many any warranties about the accuracy, completeness or reliability of this information. The new study identified all the points of difference for nine capuchino species, with a surprising result. \\ do not interbreed extensively. C) Genetic variation. In contrast, humans have many more microRNA molecules (miRNAs) than these animals. p2: homozygous dominant (sad) 2pq: heterozygotes (sad) Q2 heterozygous recessive (happy) This is an scenario of what could occur. How does the human body's molecular system differ from dogs? \\ d. They are in the same geographic area. 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. Theyre very easy to distinguish. (Listen to recordings from our Macaulay Library archive: Dark-throated Seedeater, Marsh Seedeater, and Tawny-bellied Seedeater.). This is a question that has been debated for many years. What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Why is it that physical distinction between genders is more evident in humans than it is in other animals, say, a cat? How genetically different must a mutated individual be to be considered a different species? Similarities at the beginning of embryonic development imply they have common ancestors. In what ways has the evolutionary biology of other animals been altered by the presence of human beings? Why does diversity between individuals and between species create problems for determining what is a species and what is a variant? Does the question reference wrong data/reportor numbers? A few years went by without much rain, and the only species of tree that survived had large seeds. Explain. Here's how it works. Why or why not? b) Yes, some individuals can change a little and pass those changes on to their offspring. In genetics, two organisms are part of the same population if: \\ a. Over more recent history, during the last 10,000 years, there have been significant changes for humans to . Could individuals of a species look different today than individuals of the same species did many generations ago To put this another way: all humans have the same genes, yet we do not look alike. A major difference among finch species is in their beaks: both size and shape vary greatly. a) Variation b) Normalization c) Extinction. Are humans subject to the same pressures of natural selection as other organisms? What caused us to become so different? 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. Give a reason why animals must be classified. Thoroughly describe an example of each mechanism. Could individuals of a species look different today than individuals of the same sspecies did many generations ago? B. 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. 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. What is the reason for the phenotypic differences between individuals of the same species? Therefore, the first concept of the term "species" was based on the morphology. What caused us to become so different? Why do human bodies look so different across the planet? Because so much of each species genome is the same, Campagna says its easier to find the minute differences, making them great subjects for study. Thats because females of all the capuchino species look identicalits often impossible to tell them apart, even in the hand. Explore Darwin's Theory of Evolution by Natural Selection. 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. Consider a population that lacks variation and no individual has any advantageous traits. How fast can tarantulas move? Q6. b. 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. How are the striking similarities among genes that govern development in widely differing species strong evidence for evolution? Its individuals appear different from other species. Are there such height differences in the animal kingdom? Which kinds of animals are most different from each other: humans or chimpanzees? Explain! Now, another group of South American finches known as capuchino seedeaters is helping scientists learn about how, and how fast, evolution works. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation. a. We've gathered the most relevant information and related questions to: Could individuals of a species look different today chegg? b. A population is a group of individuals of the same species. Explain why monotremes are unique mammals. How do you capture a snapshot of evolution as its happening? 20 hours ago, Posted Explain. What are the 2 main reasons for variation between organisms of the same species? Could individuals of a species look different today than individuals of the same species did many generations ago? If variations or mutations are extreme enough, new species can result. Genetic variation within a species can result from a few different sources. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. 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. A. a. weather. What are possible reasons for t, Different species of animals rely more heavily on different senses. Why or why not? For example, chimpanzees and humans, the skulls of which are shown in Figure 12.2. The known types of human species included: 1. Why is it harder for human babies to be delivered than other animals? b) Yes, some individuals can chang; Why didn't humans evolve to hibernate like many other mammals? Campagna points out that to a certain degree there may be a cultural element involved, tooa female picks a bird colored like her father or other relatives. 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? O No, species do not change even after many generations, so individuals of the same species would not look different. This textbook can be purchased at www.amazon.com. To put this another way: all humans have the same genes, yet we do not look alike. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Donec aliquet. a) Yes, all individuals can change a little and pass those changes on to their offspring. \\ e. They are the same species and a. 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. \\ b. Why does natural selection occur more in animals than humans? Learn about human evolution, how modern humans developed. The graphs below represent her findings.What can you conclude from the researchers results?The hypothesis that longer horns offer greater protection against predation is supported.The hypothesis that longer horns offer greater protection against predation is NOT supported.The experiment is well designed, but the results are inconclusive about the hypothesis.The experiment is not well designed to test the hypothesis. Could pitcher plants genetically evolve or mutate to become similar to small carnivorous animals in the coming years (100, 200 or even 1,000)? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. One species might have trills in different places, another song might be buzzy. As in all species, there is variation among individual human beings, from size and shape to skin tone and eye color. Why do people (and most other species) have two copies of each chromosome? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Traits must be inherited from one generation to the next. Why does natural selection only act on heritable variation? Numerous species in the same region must have recently become extinct. Were the solution steps not detailed enough? a. the development of traits that organisms need in order to become more complex b. gene changes in populations over many generations c. the change that occurs in individuals as they try to survive in their environment d. the. Describe why heritability only applies to population (not individuals or species), and how heritability can change without any genetic change occurring. The Gray's come from a star-system known as Zeti Reticuli; Which is a star system located somewhere in the southern celestial hemisphere. You can specify conditions of storing and accessing cookies in your browser. 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. She likes certain aspects of both types of dog. How can making good decisions help people? Could you please spare some time meaning? What is the most likely explanation of why this antibiotic no longer kills this bacteria? Why do different genders of the same animal evolve differently? There is similar variety for wings and head color, creating an almost mix-and-match effect when the species are viewed side by side. Yes, some individuals can change a little and pass those changes on to their offspring. How are humans related to primates? There are at least 4 different ways that humans have genetic variation, a. could individuals of a species look different today. Are humans exempt from natural selection because of the technological nature of our society? Which of the following is an example of genetic engineering? Why or why not? Some organisms may be very closely related, even though a minor genetic change caused a major morphological difference to make them look quite different. Select the correct statement(s) that justifies how he arrived at this conclusion. Many animals share similar characteristics with other animals and also share some features with humans. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Why has nature decided to create exactly two genders (for humans and animals) and not 3 or 5 for example? The current 13 finch species are the only species that survived. Difficulties with Darwin's concept tempted a number of people to try to redefine species by means of interbreeding. *. Which of the following is REQUIRED for the process of evolution by natural selection to occur? Why? Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. What is the reason for the phenotypic differences between individuals of the same species? Which of the following is NOT a potential benefit of genetic engineering? What is the reason for the phenotypic differences between individuals of the same species? 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. Could individuals of a species look different today than individuals of the same species looked many generations ago? Morphology is how an individual looks. Any action you may take upon the information you find on this website is strictly at your own risk. 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 are animals shaped differently in cooler climates than in warmer ones? Why are humans so different from other animals? Privacy Policy. Could individuals of a species look different today than individuals of the same species did many generations ago? Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Createyouraccount. \\ have many common physical and behavioral characteristics. Miriam wanted a new pet. 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. Donec aliquet. 1. 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.East Peoria Police Scanner,
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