Q6. What characteristics are unique to mammals? C. Variatio. A species of bird ate many types of seeds, each type coming from a different species of tree. 2. Biologists believe that new species evolve from existing species by a process called natural selection. Could individuals of a species look different today than individuals of the same species did many generations ago? 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. Donec aliquet. Yes, some individuals can change a little and pass those changes on to their offspring. c. A change in heritable traits over time occurs at. The descendants would look the same as the original individuals because species do not change. Why or why not? Some force other than environmental conditions must be acting upon the males to produce so many species. Why does diversity between individuals and between species create problems for determining what is a species and what is a variant? One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. 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. 2. The correct answer is (c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. O Yes, some individuals can change a little and pass those changes on to their offspring. Why do people (and most other species) have two copies of each chromosome? 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. a) Yes, all individuals can change a little and pass those changes on to their offspring. Why would competition between two animals of the same species likely be more intense than competition between two animals of different species? There are some phenotypic differences among human populations that reflect adaptation to different environments. Why are there such large differences in the diversity within a clade? 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. All rights reserved. Many years ago, more than 13 different species of birds migrated to the islands. What are the similarities between humans and other apes? In what ways has the evolutionary biology of other animals been altered by the presence of human beings? One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. Take note of any potential side effects associated with these supplements too - some ingredients could cause allergic reactions or digestive problems if taken in excess amounts, so . Posted (b) Which is important for evolutionary change and why? This is an example of a. sympatric speci, How are humans evolving today? This changed the way that humans reproduced and evolved, which in turn, changed the way that humans look today. Fontana, P.L. Why or why not? Yes, some individuals with certain traits are more likely to survive and pass Be as specific as possible. Give an example of how these mechanisms have impacted evolution in a species. Their feet are webbed and this trait makes them fast swimmers. As you know, the scales of these changes are different. Which of the following conditions would biologists say was required for the evolution of DDT resistance in a population? All humans carry the same genes. A species is a population of plants or animals that can breed to produce offspring that can then produce offspring themselves. How is this best explained?Ducks with less webbing worked harder than ducks with more webbing to eat aquatic plants. TUCKER CARLSON: One thing we have learned after many years in the news business is that every once in a while you've got to eat some crow and admit that despite your best intentions, you were . A geographically continuous population has a gene pool that is relatively homogeneous. What additional genetic factors increase the resemblance between siblings? Skin color is not directly tied to race. Do tarantulas make webs like other spiders? How genetically different must a mutated individual be to be considered a different species? Nam lacinia pulvinar tortor nec facilisis. What are the features of a highly evolved brain? In what ways is culture similar between human and nonhuman primates? Pluto TV is an ad-supported streaming service run by Paramount. On average, what effect does genetic drift have on the differences between populations? Could a remove () function also be defined for a singly linked list? Why or why not? Explain the mechanisms of genetic variation. These rocks were once below the ocean surface. Donec aliquet. 3. Why or why not? Why didn't other animals evolve to become closer to humans in intelligence? An ideal solenoid (N1N _ { 1 }N1 turns, length L1L _ { 1 }L1, radius r1)r _ { 1 } )r1) is placed inside another ideal solenoid (N2N _ { 2 }N2 turns, length L2>L1L _ { 2 } > L _ { 1 }L2>L1, radius r2>r1r _ { 2 } > r _ { 1 }r2>r1) such that the axes of the two coincide. Yes, some individuals can change a little and pass those changes on to their offspring. 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. Miriam wanted a new pet. Do animals have the same blood groupings? Biologists believe that ducks evolved from land birds that did not have webbed feet. Which adaptation described below probably does not protect the plant from being eaten by herbivores? The amount of webbing on ducks' feet had no relationship with the amount their parents had. E) urea. 2) The biological species concept. First, the two species would need to be geographically isolated from each other. Genotype is the written instructions for appearance based on the DNA. Different finch species live on different islands. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Explain. (opens in new tab) A person walking in the Mojave Desert during the post-apocalyptic Wasteland Weekend festival on Sept. 28, 2019. This can result from random processes called genetic drift, or a more adaptive mechanism called natural selection. All living species de. What species are humans today? Explain how the mechanisms of evolution, such as natural selection, would be at play in the changing of human genes. d. continental drift. Microscopic study of the teeth indicates that he grew up at a growth rate similar to that of a great ape. What are possible reasons for t, Different species of animals rely more heavily on different senses. Why is a convoluted brain better than a smooth one? 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. or nec facilisis. 2. Choice (d) is incorrect because it would be possible for this species to evolve over time. What might scientists say about the human, seal, bird, and bat based on this evidence? Get access to this video and our entire Q&A library, Who Was Charles Darwin? The male finches are the same shape and size but wear different combinations of about five colors. Explain why only populations evolve but individuals do not. 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. same species would not look different. Why or why not? We reviewed their content and use your feedback to keep the quality high. individuals of the same species did many generations ago? 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. The light moths declined in number and the dark colored moths increased in number. Which of the following is REQUIRED for the pricess of evolution by natural selection to occur? 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. Submit your documents and get free Plagiarism report, (Rate this solution on a scale of 1-5 below). One or more species must have recently been introduced to the region. A population is a group of individuals of the same species. Yes, all individuals can change a little and pass those changes on to their offspring. 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. Plants and animals do not share a common multicellular ancestor. b) Yes, some individuals can chang. ago? Genetic drift is evolutionary change resulting from: a. chance differences in reproductive success b. natural selection c. differences in individuals' fit to their environment d. mutation. Fusce dui lect, , dictum vitae odio. 6. Mosquitoes in the population learned to adapt to the high levels of DDT in the environment. Donec aliquet. It is believed that humans started to transfer information from tools to symbols and from symbols to letters from generation to generation. Why are there so many different ways to define a species? Wing bone structures of penguins and other birds are functionally different, but homologous. How does evolution occur in a species? Explain. Done, onec aliquetpulvinar tortor nec facilisis. The smallest and largest snails would be the most likely to reproduce. Choose an animal and. What are the noteworthy differences between the two? Why or why not? Many generations later, almost all ducks had more webbing on their feet. What caused us to become so different? 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.)? What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. b) Yes, some individuals can change a little and pass those changes on to their offspring. There is similar variety for wings and head color, creating an almost mix-and-match effect when the species are viewed side by side. Explain! AnswerGoat.com does not many any warranties about the accuracy, completeness or reliability of this information.