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How is it the same? 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. In what ways is the human brain different from other species (non-primate and non-human primate)? why or why not? Why or why not? All of the following are protective adaptations except one. A species is a population of plants or animals that can breed to produce offspring that can then produce offspring themselves. The smallest and largest snails would be the most likely to reproduce. Explain how the mechanisms of evolution, such as natural selection, would be at play in the changing of human genes. (I am of the assumption that changes in DNA spur the adaptations that take place--at least those through genetic mutation--and thus the adaptations, In what way is artificial selection different from natural selection? Recently, more and more farmers have discovered that their fields have Roundup-resistant pigweed growing along with their crop. 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. Submit, Explore over 16 million step-by-step answers from our library, , dapibus a molestie consequat, ultrices ac magna. Could individuals of a species look different today chegg? 2) The biological species concept. B. Popcornflix is a free over-the-top streaming service out there within the US and Canada. b)Yes, some individuals can change a little and pass those changes on to their offspring. Thoroughly describe an example of each mechanism. There are two layers to physical appearance - genotype and phenotype. 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. Explain why only populations evolve but individuals do not. The longer that two populations are kept from interbreeding, the: a. more recessive alleles will be expressed. These structures do not look alike and are not used in the same way, but their bones are similar. 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 What does the pattern of genetic variation in modern human tell us about the origin and spread of homosapiens? Which of the following histograms show the correct representation of the snail shell thickness data 4, 7, 2, 5, 4, 3? It is believed that humans started to transfer information from tools to symbols and from symbols to letters from generation to generation. The descendants would become a completely different species that would have no similarities to the original individuals. a) Yes, all individuals can change a little and pass those changes on to their offspring. C) not all mutations cause visible change. a) Variation b) Normalization c) Extinction. To put this another way: all humans have the same genes, yet we do not look alike. Fusce dui lectus, congue vel laoreet ac, d, congue vel laoreet ac, dictum vitae odio. Evolutionary changes occur when ________ acts upon populations containing individuals with genetic differences. Species have changed and continue to change over time because of their environment, genetics, and reproduction. Individual differences with a genetic basis lead to in successive generations. When Carolus Linnaeus first came up with his binomial nomenclature taxonomy, all individuals were grouped by morphology. Course Hero is not sponsored or endorsed by any college or university. 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. 6. Nam lacinia pulvinar tortor nec facilisis. Why or why not? Give an explanation for your answer. a. Pellentesque dapibus efficitur laoreet. Become a Study.com member to unlock this answer! No, species do not change even after many generations, so individuals of the same species would not look different. Why is it that a population is the unit of evolution rather than the individual? Experts are tested by Chegg as specialists in their subject area. 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. Yet why do some races seem to have darker (or lighter) skin tones than others? The mosquito population needed to evolve DDT resistance in order to avoid extinction. By what mechanisms have we evolved into distinct species? 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? 2. 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. For example, if a species of fish was only exposed to freshwater, they might look different than if they were exposed to saltwater. Humans have genetic diversity than chimpanzees. 2003-2023 Chegg Inc. All rights reserved. Humans rely on other organisms for survival; however, all other organisms would be better off without humans. Question Could individuals of a species look different today than individuals : 425869. Evolutionary biologists often compare the morphological features of different organisms to look for relationships to determine how they have changed over time. The correct answer is (c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. We are, in fact, remarkably similar. Which form of gene technology would be the best for this example? 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. Considering chimpanzees and humans share 90% of the same DNA, why can't they breed together? If variations or mutations are extreme enough, new species can result. \\ c. They have the same phenotype. This indicates that: A. And their choices may not be entirely governed by genetics. copyright 2003-2023 Homework.Study.com. For example, a shark uses its electrosensory and olfactory organs predominately to interact with its environment, whereas primates are heavily dependent upon vision. 2017. 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 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. Q6. Could individuals of a species look different today than individuals of the same species did many What causes variation in a species? \\ e. They are the same species and a. Here's how it works. In genetics, two organisms are part of the same population if: \\ a. The Gray's come from a star-system known as Zeti Reticuli; Which is a star system located somewhere in the southern celestial hemisphere. A disease attacks those plants and wipes them out. How different are the various functional traits among the different species of deer? How do animals that live in different environments meet their need for efficient gas exchange? All living species de. The histograms below show data obtained by a student playing crab in the Darwinian Snails simulation . Miriam wanted a new pet. Submit your documents and get free Plagiarism report, (Rate this solution on a scale of 1-5 below). 2. Why or why not? Would you expect the DNA of the goat to be more similar to? The amount of webbing on ducks' feet had no relationship with the amount their parents had. Explain how animal behaviors, including human behaviors, are governed by genetic inheritance. If two species look alike, live in different places, but are not genetically related, it is probably a case of _______. How do changes in DNA affect changes in adaptations? D) amino acids What are the four major ways that humans are affecting other species through our actions? Lovette. 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. Humans shape their environment in ways that other organisms cannot. Answering the following Biology Lab questions.Q6.1. On average, what effect does genetic drift have on the differences between populations? If variations or mutations are extreme enough, new species can result. \\ vary only very slightly in appearance. Why are humans so different from other animals? 2. Fontana, P.L. Q7. 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. Give an example of how these mechanisms have impacted evolution in a species. Do tarantulas make webs like other spiders? 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? She couldn't decide if she wanted a Poodle or a Siberian Husky. Q6.6. Discuss both the evolutionary implications/benefits of light skin pigmentation and dark skin pigmentation. Could individuals of a species look different today than individuals of the same species did many generations ago? There must be a sudden environmental change. David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, BioEffRad-StudyGuide2019-Section7- Models of. In this sense, a species is the biggest gene pool possible under natural conditions. Could two genetically perfect humans have all the genetic diversity needed for a species? They were made famous by Charles Darwin, who developed his theory of evolution in part by studying the birds. Near industrialized areas, black powder covered surfaces, including the moth habitat. c)Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. This is because the mutation would be passed down to future generations, and over time, the appearance of the species would change. Learn about human evolution, how modern humans developed. Second, the two species would need to have a significant difference in their reproductive capabilities. AnswerGoat.com will not be liable for any losses and/or damages in connection with the use of the website. This is an example of a. sympatric speci, How are humans evolving today? Why or why not? Do monkeys vary in similar ways? Why do most species eventually evolve sexual reproduction? Finches with small beaks ate all of the small seeds, leaving only bigger seeds. 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. 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. Which of the following is REQUIRED for the pricess of evolution by natural selection to occur? In sympatric speciation, groups from the same ancestral population evolve into . See Answer 3 days ago. individuals of the same species did many generations ago? \\ b. Members from different species are not able to give rise to viable offspring. Why or why not? Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. Different finch species live on different islands. Yes, all individuals can change a little and pass those changes on to their offspring. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. In animals generally, how much variation do you expect to see within as compared to between different races of a single species? What is the connection between the size of a snail and their ability to reproduce, when around birds? For the past 10 to 25 years, farmers have planted crop seeds that have been genetically modified to withstand treatment with a common weed killer called Roundup. Why would competition between two animals of the same species likely be more intense than competition between two animals of different species? The existence of play in non-human animals is a direct challenge to old-fashioned scientific ideas. Theyre very easy to distinguish. (Listen to recordings from our Macaulay Library archive: Dark-throated Seedeater, Marsh Seedeater, and Tawny-bellied Seedeater.). Could individuals of a species look different today than individuals of the same species did many generations ago A large population of animals is split in two by a physical barrier. \\ do not interbreed extensively. Over more recent history, during the last 10,000 years, there have been significant changes for humans to . O Yes, all individuals can change a little and pass those changes on to their What are the 2 main reasons for variation between organisms 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. If a species is evolving, when is it considered a new species different from the organism it evolved from? How does competition among humans differ from competition in other animal species? Unlike Darwins finches, in which environmental conditions such as food supply rewarded birds with different beak shapes, the capuchino finches all eat the same type of food and live in grasslands scattered across South America. C. Variatio. C. organism populations can change physically over long periods of time. Why are these genes similar but not identical? Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Yes, some individuals can change a little and pass those changes on to their offspring. 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. not? Many animals share similar characteristics with other animals and also share some features with humans. 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. A geographically continuous population has a gene pool that is relatively homogeneous. What will most likely happen to the population in terms of natural selection? O Yes, some individuals can change a little and pass those changes on to their As many years went by, the environment changed such that the aquatic food sources were much more plentiful than those on land. How are humans evolving today? How can similar types of genetic mutation occur in different individuals of the same species? (opens in new tab) A person walking in the Mojave Desert during the post-apocalyptic Wasteland Weekend festival on Sept. 28, 2019. Yes, some individuals can change a little and pass those changes on to their offspring. People who are heterozygous for the sickle-cell allele: Are not susceptible to either sickle-cell anemia or malaria. In evolutionary terms, thats life in the fast lane. All humans carry the same genes. Conditions have changed in significant ways everywhere on earth, with some of these changes happening suddenly and others more gradually. 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 . - Theory of Evolution & Natural Selection. Could the us have to maintain neutrality in ww1? Some scientists believe that the answer is yes, while others believe that the answer is no. (a) convergent evolution (b) divergent evolution (c) evolutionary cyclicity (d) uniformitarianism. Could individuals of a species look different today than individuals of the same species did many generations ago? It is reproductively isolated from other species. Give a reason why animals must be classified. If so, how do modern humans differ from them? Why are there such large differences in the diversity within a clade? Their songs are different, too. 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. If so, why did we evolve this way? (b)(b)(b) If the drag force is given by bv2b v^2bv2, what is the value of bbb ? What makes modern humans (Homo sapiens) unique in terms of our biological and cultural adaptations? 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. Nam lacinia pulvinar tortor nec facilisis. Yes, all individuals can change a little and pass those changes on to their offspring. 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. 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 What are the general characteristics shared by all animals? No. Explain why monotremes are unique mammals. Discuss at least five aspects/qualities/traits of non-human primates that are similar and/or different from humans. Over many generations, more beneficial traits will become more _____ since the organisms with those traits are better able to survive and _____. Why do different genders of the same animal evolve differently? A researcher observed that lizards living in areas with predatory birds have longer horns than those in areas with no predatory birds. What caused us to become so different? Yes, some 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 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.

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