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Why or why not? Which of the following is REQUIRED for the pricess of evolution by natural selection to occur? Could individuals of a species look different today than individuals of the same species did many generations ago? Q6.5. 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. For example, a shark uses its electrosensory and olfactory organs predominately to interact with its environment, whereas primates are heavily dependent upon vision. To put this another way: all humans have the same genes, yet we do not look alike. CHOOSE ALL THAT APPLY! B) not all mutations are beneficial. B) Low levels of genetic variation may make hybrid species more likely, so neither species will go extinct. Happy face spider photos courtesy of Rosemary Gillespie, UC . Give an example of how these mechanisms have impacted evolution in a species. But it may be a Herculean task to find out. 2. Some force other than environmental conditions must be acting upon the males to produce so many species. Its rather like two cooks using the exact same ingredients for spaghetti sauce, but using a different recipe, varying when and how much of each ingredient is added, so the two sauces taste quite different. In Europe, dark peppered moths were rare before the 1850's and light colored moths were plentiful. Nam lacinia pulvinar tortor nec fiscing elit. How is this best explained? Which of the following conditions would biologists say was required for the evolution of DDT resistance in a population? Why does natural selection only act on heritable variation? d. greater the chance one will go extinct. Why or why not? Human-made tools of prehistoric times 2.5 million years ago show that humans began to memorize information in steps. Discuss at least four differences between apes and humans. Selection acts on variation in ______; however, evolution depends on variation among _______. Why are humans so genetically similar? B. Why is it necessary to take enough time before making a decision? Choose an animal and. A few years went by without much rain, and the only species of tree that survived had large seeds. Which of the following statements support the Theory of Evolution? 2 are very similar genetically, sharing 99 percent 1 of their genes. Submit Q6.6. 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. 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. How does evolution occur in a species? If they are met, natural selection automatically results. What is an example of a genetic mutation that created a new species in the modern era that humans have documented? O No, species do not change even after many generations, so individuals of the same species would not look different. b. greater the mutation rate will be. b) Yes, some individuals can chang. Does genetic variation makes evolution possible? Yes, some individuals can change a little and pass those changes on to their offspring. Why is genetic variation so important to evolution? (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? a) Yes, all individuals can change a little and pass those changes on to their offspring. No, species do not change even after many generations, so individuals of the same species would not look different. Propose an explanation for the return of the light-colored peppered moth population. There must be a sudden environmental change. (b) How does competition among humans differ from the competition in other animal species? Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. These separate evolutionary events led to different methods of achieving complex multicellularity in these groups. Humans and chimpanzees are estimated to have diverged their evolutionary paths about 5 to 6 million years ago while remaining the same before that period. What really fascinates him is how male capuchinos can look and sound very different across species, despite being almost identical genetically. c) Yes, some. What are the general characteristics shared by all animals? There are at least 4 different ways that humans have genetic variation, a. Scientists look for those rare instances when a species suddenly diverges, or radiates into multiple forms, each with a different appearance or behavior. Privacy Policy. b) Yes, some individuals can chang; Why didn't humans evolve to hibernate like many other mammals? Why? Thats because females of all the capuchino species look identicalits often impossible to tell them apart, even in the hand. The light moths declined in number and the dark colored moths increased in number. Are humans particularly self-destructive when compared to other animals? Yes, when the environment changes, individuals with certain inherited traits survive and will be able to reproduce. Why do humans have some genes in common with bacteria, more genes in common with fish, and even more genes in common with mice? 2. Why do human bodies look so different across the planet? Q8. As you know, the scales of these changes are different. In this sense, a species is the biggest gene pool possible under natural conditions. Its individuals appear different from other species. No, species do not change even after many generations, so individuals of the same species would not look different. Scientists have estimated that there are around 8.7 million species of plants and animals in existence. 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? Did doc holliday actually shoot johnny ringo? To continue further with th. D) not all mutations affect an entire species. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. 2017. Q7. The descendants would become a completely different species that would have no similarities to the original individuals. Createyouraccount. Why or why not? They would do this by breeding a Poodle with a Husky. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Why don't other animals have as many genetic mutations as humans? a. weather. Traits must be inherited from one generation to the next. Yes, some individuals with certain traits are more. What species are humans today? Explain why monotremes are unique mammals. p2: homozygous dominant (sad) 2pq: heterozygotes (sad) Q2 heterozygous recessive (happy) This is an scenario of what could occur. A species is often defined as a group of individuals that actually or potentially interbreed in nature. Learn about human evolution, how modern humans developed. DDT is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. Tubaro, and I.J. If variations or mutations are extreme enough, new species can result. A species of bird ate many types of seeds, each type coming from a different species of tree. Donec aliquet. so you can get an accurate answer to your question. There are some phenotypic differences among human populations that reflect adaptation to different environments. First, the two species would need to be geographically isolated from each other. c. Humans have similar sets of biological needs d. Humans face simila. Why do humans share lots of DNA with both rats and bananas when each of these are very different things? Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Therefore, the first concept of the term "species" was based on the morphology. O No, species do not change even after many generations, so individuals of the Variation is the availability of different traits in a population. 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. Explain! The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million years ago. Are humans exempt from natural selection because of the technological nature of our society? Evolution refers to a process in which the genetic composition of a species changes over time, from one generation to the next. Could you please spare some time meaning? Lettuce, broccoli and spinach may look and taste fairly normal but Studies done in the early 2000 . 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 . What does. Individual differences with a genetic basis lead to in successive generations. Question: could individual of a species look different today than individual of the same species did many generations ago? Q6.5. Mice & Keyboards. If two species look alike, live in different places, but are not genetically related, it is probably a case of _______. Doctors find that a certain type of antibiotic is no longer effective against the type of bacteria it used to kill. Learn about Charles Darwin's background, what theory he is known for, and what natural selection is. From one ancestral species that colonized the remote island chain, many new finch species evolved with differently sized and shaped beaks to exploit the foods available. Yes, some individuals can change a little and pass those changes on to their offspring. Why or why not? Nam risus ante, dapibus a molestie consequat, ultrices ac magna. \\ e. They are the same species and a. Get access to this video and our entire Q&A library, Human Evolution Lesson for Kids: Timeline & Stages. For example, when humans first migrated to North America, they were faced with a new environment with different plants and animals. Do species evolve at a faster rate if they have a larger population due to being more likely to experience genetic mutation? a. populations; individuals b. genes; traits c. plants; animals d. traits; genes. Consider a population that lacks variation and no individual has any advantageous traits. How are these two copies similar? Many generations later, almost all the birds had the slightly larger beaks. Donec aliquet. How can making good decisions help people? It is their physical features and anatomical parts. a) Yes, all individuals can change a little and pass those changes on to their offspring. Most people today would classify such forms as different species, and none of these sibling species mate with one another in normal circumstances. In evolutionary terms, thats life in the fast lane. Pluto TV is an ad-supported streaming service run by Paramount. Why is sexual selection likely to result in more rapid changes in phenotype than typical natural selection in the same population? The theory of evolution states: A. better-adapted organism reproduces at a higher rate. In animals generally, how much variation do you expect to see within as compared to between different races of a single species? Explain how animal behaviors, including human behaviors, are governed by genetic inheritance. Explain your answer. Fossils of organisms that lived many years ago, and DNA from the remains of organisms that lived many years ago. DDT is an insectieide that was used extensively in the mid-1900s to kill mosquitoes. Could individuals of a species look different today than individuals of the same sspecies did many generations ago? The correct answer is (c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Experts are tested by Chegg as specialists in their subject area. 9 months ago, Posted Q5. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. c. natural selection. b. Evolution only occurs in a very large gene pool. races)? Yes, all individuals can change a little and pass those changes on to their offspring. The billions of human beings living today all belong to one species: Homo sapiens. O Yes, some individuals can change a little and pass those changes on to their Yes, some individuals with certain traits are more likely to survive and pass Do any monkey species have different races similar to humans? Lorem ipsum, amet, consectetur adipiscing elit. Evolutionary biologists often compare the morphological features of different organisms to look for relationships to determine how they have changed over time. One theory is that individuals of a species could look different today if they were exposed to different environmental conditions. How are the striking similarities among genes that govern development in widely differing species strong evidence for evolution? A head of broccoli today is not the same as a head of broccoli 70 years agothey're almost different species. Why or why not? 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. Which of the following is an example of genetic engineering? 1. Explain some reasons why humans have been able to expand in number and distribution to a greater extent than most other animals. 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. Evolutionary changes occur when ________ acts upon populations containing individuals with genetic differences. Why is it that physical distinction between genders is more evident in humans than it is in other animals, say, a cat? How is knowing how an animal develops important to determining its common ancestor? Reproduction is the ability of an organism to create new offspring. Why does natural selection only act on heritable variation? Which of the following is NOT an example of gene technology? Yes, all individuals can change a little and pass those changes on to their offspring. If a species is evolving, when is it considered a new species different from the organism it evolved from? The amount of webbing on ducks' feet had no relationship with the amount their parents had. Genetic drift b. Gene flow c. Mutation d. Natural selection. How can similar types of genetic mutation occur in different individuals of the same species? a) Yes, all individuals can change a little and pass those. We have the same building blocks, but the instructions on what to do with those building blocks are different among the finches, says Campagna.