c) Yes, some. a. weather. His observations of the embryos lead him to conclude that the species share a common ancestry. Pellentesque dapibus, congue vel laoreet ac, dictum vitae odio. b. greater the mutation rate will be. Proposals that one type of animal, even humans, could descend from other types of animals, are known to go back to the first pre-Socratic Greek philosophers. Yes, all individuals can change a little and pass those changes on to their offspring. B) glucose Thats because females of all the capuchino species look identicalits often impossible to tell them apart, even in the hand. 2. We store cookies data for a seamless user experience. Drought caused plants to die. But it may be a Herculean task to find out. Do any of our fossil relatives or other species share some aspects of this unique set of characteristics? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. 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. Evolution refers to a process in which the genetic composition of a species changes over time, from one generation to the next. Why or why not? First, the two species would need to be geographically isolated from each other. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. 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. 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. You can specify conditions of storing and accessing cookies in your browser. why or why not? b)Yes, some individuals can change a little and pass those changes on to their offspring. The central ideas of evolution are that life has changed over time and different species share common ancestors. offspring. It takes a long time for an individual to adapt to its environment. C. Variatio. Discover when homo sapiens arrived and their hominid ancestors, such as australopithecines and Homo erectus. These structures do not look alike and are not used in the same way, but their bones are similar. What is biological evolution? Which of the following explains what might happen next? And their choices may not be entirely governed by genetics. 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. How does the human epidermal layer differ from that of other animals such as dogs and cats? From a genetics standpoint, why is there such a huge difference in height among humans? They were made famous by Charles Darwin, who developed his theory of evolution in part by studying the birds. I will post some . not? Changes in evolutionary pathways are related to changes in gene structure and changes in cultural evolution. Why or why not? Finches with small beaks ate all of the small seeds, leaving only bigger seeds. 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. How do changes in DNA affect changes in adaptations? No, species do not change even after many generations, so individuals of the same species would not look different. It may create animals that cannot reproduce. A. 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. Consider a population that lacks variation and no individual has any advantageous traits. Could individuals of a species look different today than individuals of the same species did many generations ago? Could individuals of a species look different today than individuals of the same species did many generations ago? A. C. These separate evolutionary events led to different methods of achieving complex multicellularity in these groups. copyright 2003-2023 Homework.Study.com. Happy face spider photos courtesy of Rosemary Gillespie, UC . This is an example of a. sympatric speci, How are humans evolving today? The technology behind the atomic bomb only exists because of a cooperative hive mind: hundreds of scientists and engineers. b. AnswerGoat.com will not be liable for any losses and/or damages in connection with the use of the website. 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. Assume that a population of one of these finch . A mutation is harmful to an organism if it. 1. b) Yes, some individuals can chang; Yes, some individuals with certain traits are more. 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. How different are the various functional traits among the different species of deer? 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? 3. Finally, the two species would need to be unable to interbreed. Could individuals of a species look different today than individuals of the same species did many generations ago? Lorem ipsum dolor sit amet, consectetur adipiscing elit. 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 fast can tarantulas move? Most ducks had less webbing on their feet than their parents. There are at least 4 different ways that humans have genetic variation, a. Two major equations of hardy-weinberg rule are: p2 + 2pq + q2 = 1 p + q = 1 The p and the q represent the allele frequencies for Happy and Sad respectively. 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. What does. Get access to this video and our entire Q&A library, Human Evolution Lesson for Kids: Timeline & Stages. Could individuals of a species look different today than individuals of the same species did many What causes variation in a species? 2017. Donec aliquet. To put this another way: all humans have the same genes, yet we do not look alike. What does the pattern of genetic variation in modern human tell us about the origin and spread of homosapiens? 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.)? Give an example of how these mechanisms have impacted evolution in a species. One of the requirements for the process of natural selection to occur is that there be variation among organisms. A disease attacks those plants and wipes them out. c. Humans have similar sets of biological needs d. Humans face simila. 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. A. environment and acquired characteristics will not affect populations, only individuals B. no way to pass environment or acquired characteristics to offspring, only genes C. heritable variat. b) Yes, some individuals can chang; Compared to sexual reproduction, asexual reproduction _____. A species of bird ate many types of seeds, each type coming from a different species of tree. A characteristic of an organism that can change in res. Its individuals appear different from other species. Ducks are aquatic birds. South Carolina, Colleton County | 8.9K views, 267 likes, 44 loves, 169 comments, 13 shares, Facebook Watch Videos from COURT TV: Judge Clifton Newman. Q6.5. 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 does this tell Scientists about Earth's past? However, only around 1.2 million species have been identified and described so far, most of which are insects. This problem has been solved! Submit Q6.6. 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 the connection between the size of a snail and their ability to reproduce, when around birds? Q6. David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, BioEffRad-StudyGuide2019-Section7- Models of. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation. AnswerGoat.com does not many any warranties about the accuracy, completeness or reliability of this information. Explain. Learn about capuchino evolution in this short video and article from the New York Times. Explain the mechanisms of genetic variation. ago? Variation allows some individuals to do better than others, so those variations are selected. Be s. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. 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. 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 . 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. All other trademarks and copyrights are the property of their respective owners. Become a Study.com member to unlock this answer! Pellentesque dapibus efficitur laoreet. Why or why not? Why don't other animals have as many genetic mutations as humans? Why or why not? ways in which gr12 learners could view changes after school in a positive manner, 3 ways relationships can be positive in someones well being. a) Yes, all individuals can change a little and pass those changes on to their offspring. Which kinds of animals are most different from each other: humans or chimpanzees? What is the reason for the phenotypic differences between individuals of the same species? Humans rely on other organisms for survival; however, all other organisms would be better off without humans. How is this best explained?Ducks with less webbing worked harder than ducks with more webbing to eat aquatic plants. Nam lacinia pulvinar tortor nec facilisis. Use the following passage to answer the next two questions. Why or why not? Nam lacinia pulvinar tortor nec facilisis. p2: homozygous dominant (sad) 2pq: heterozygotes (sad) Q2 heterozygous recessive (happy) This is an scenario of what could occur. Non-human primates have a lot to tell us about ourselves and our origins. How are animals that are different species able to reproduce? Be as specific as possible. This changed the way that humans reproduced and evolved, which in turn, changed the way that humans look today. Traits must be inherited from one generation to the next. What are the features of a highly evolved brain? Could individuals of a species look different today than individuals of the same species looked many generations ago? Why does natural selection only act on heritable variation? And yet, at the genetic level they are up to 99.97% identical. 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. a. After many generations, will all individuals in the population have the same adaptive trait? Why didn't humans evolve to hibernate like many other mammals? For this topic, please briefly compare and contrast microevolution and macroevolution. Some populations are innately superior to others, because they have what it takes to prevail in those environments. 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. The amount of webbing on a duck's feet is a heritable trait. Why or why not? What additional genetic factors increase the resemblance between siblings?