Why do humans, animals, and plants have to evolve reproductive function? Learn about Charles Darwin's background, what theory he is known for, and what natural selection is. It is possible that the answer to this question could be found through further research. 11 months ago, Posted Explain. c. Humans have similar sets of biological needs d. Humans face simila. Reproduction is the ability of an organism to create new offspring. Answering the following Biology Lab questions.Q6.1. See Answer E) urea. 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. 2007-2023 Learnify Technologies Private Limited. Privacy Policy. Could individuals of a species look different today than individuals of the same species did many generations ago? 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. 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. Which of the following statements support the Theory of Evolution? a. What are the impli. What causes variation in a species? In biology, what is an adaptation? Popcornflix is a free over-the-top streaming service out there within the US and Canada. Some scientists believe that the answer is yes, while others believe that the answer is no. Some organisms may be very closely related, even though a minor genetic change caused a major morphological difference to make them look quite different. 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. Because scientists are witnessing capuchino finch evolution in mid-stride, the outcome is still a mystery. B. What is genetic recombination? The amount of webbing on ducks' feet had no relationship with the amount their parents had. Scientists have estimated that there are around 8.7 million species of plants and animals in existence. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation. Lorem ipsum dolor sit amet, consectetur adipiscing elit. It's very important, and theoretically you could have a race where everyone has the same genotype for physical appearance. Pellentesque dapibus efficitur laoreet. These include the amount of genetic variation within a population, the number of evolutionary opportunities that a population has, and the number of genetic mutations that occur within a population. Q7. Access to over 100 million course-specific study resources, 24/7 help from Expert Tutors on 140+ subjects, Full access to over 1 million Textbook Solutions. Why or why not? Explain why only populations evolve but individuals do not. Could individuals of a species look different today than individuals of the same species did many generations ago? What caused us to become so different? 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. \\ b. Peppered moths have wings that vary in color, ranging from white to dark gray. Which form of gene technology would be the best for this example? 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. Pellentesque dapibus efficitur laoreet. why did dinosaurs evolve earlier than humans? How are they different? How are humans evolving today? Members from different species are not able to give rise to viable offspring. Does the mechanism produce a change in individuals or populations? 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 2) The biological species concept. Why or why not? A certain species of rodent eats only one type of plant. Why do different genders of the same animal evolve differently? Does the question reference wrong data/reportor numbers? Over more recent history, during the last 10,000 years, there have been significant changes for humans to . There is no definitive answer to this question, but there are some interesting theories that can be considered. Second, the two species would need to have a significant difference in their reproductive capabilities. 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. If two species look alike, live in different places, but are not genetically related, it is probably a case of _______. We have the same building blocks, but the instructions on what to do with those building blocks are different among the finches, says Campagna. A farmer takes pollen from a plant with desired traits and intentionally places the pollen on a plant with other desired traits. Done, onec aliquetpulvinar tortor nec facilisis. The smallest and largest snails would be the most likely to reproduce. (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. Which of the following conditions would biologists say was required for the evolution of DDT resistance in a population? Could individuals of a species look different today than individuals of the same species did many generations ago? C. Variatio. \\ have many common physical and behavioral characteristics. What are the general characteristics shared by all animals? Could you please spare some time meaning? What is the scientific reason why people around the world have different skin colors? Evolution refers to a process in which the genetic composition of a species changes over time, from one generation to the next. A species of bird ate many types of seeds, each type coming from a different species of tree. 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 how differences in skin color of humans have been selected for in different environments. How do animals that live in different environments meet their need for efficient gas exchange? Donec aliquet. 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 . In Europe, dark peppered moths were rare before the 1850's and light colored moths were plentiful. How are these two copies similar? 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. By the year 2000, the graph shows the population of light colored moths significantly increasing. Which form of gene technology is this an example of? b. Are DNA mutations and natural selection two different mechanisms of evolution? Their feet are webbed and this trait makes them fast swimmers. p2: homozygous dominant (sad) 2pq: heterozygotes (sad) Q2 heterozygous recessive (happy) This is an scenario of what could occur. It is their physical features and anatomical parts. a) Yes, all individuals can change a little and pass those changes on to their offspring. Could individuals of a species look different today chegg. a) Yes, all individuals can change a little and pass those changes on to their offspring. 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. 2. In sympatric speciation, groups from the same ancestral population evolve into . There is fossil evidence that this . Describe a study an evolutionary biologi. How similar were humans 2,000-3,000 years ago compared to us now in appearance and genetics? This allows the farmers to spray their fields to get rid of weeds without harming their crops. The bacteria have become resistant over several generations. Course Hero is not sponsored or endorsed by any college or university. The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million years ago. Humans shape their environment in ways that other organisms cannot. In Europe, dark peppered moths were rare before the 1850's and light colored moths were plentiful. As you know, the scales of these changes are different. How are humans able to affect and alter the phenotypes of other organisms through artificial selection? There must be a sudden environmental change. Which of the following is an example of genetic engineering? A head of broccoli today is not the same as a head of broccoli 70 years agothey're almost different species. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. What is the most likely explanation of why this antibiotic no longer kills this bacteria? Explain why only populations evolve but individuals do not. Yes, all individuals can change a little and pass those changes on to their offspring. The number of this type of rodent will decrease. a. One or more species must have recently been introduced to the region. A. The existence of play in non-human animals is a direct challenge to old-fashioned scientific ideas. Why or why not? From the Autumn 2017 issue of Living Bird magazine. 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. Fossils of organisms that lived many years ago, and DNA from the remains of organisms that lived many years ago. (b)(b)(b) If the drag force is given by bv2b v^2bv2, what is the value of bbb ? Could individuals of a species look different today than individuals of the same species did many generations ago? This problem has been solved! Yet why do some races seem to have darker (or lighter) skin tones than others? Why would competition between two animals of the same species likely be more intense than competition between two animals of different species? Humans share the same genetic code with: a. just other vertebrates. What is the difference between genetic diversity and genetic variation? Question Could individuals of a species look different today than individuals : 425869. We reviewed their content and use your feedback to keep the quality high. 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 generations, so Biologists believe that new species evolve from existing species by a process called natural selection. AnswerGoat.com will not be liable for any losses and/or damages in connection with the use of the website. If there is NO VARIATION in shell thickness within a population of snails, and no mutations occur, what happens to shell thickness in (Hide this section if you want to rate later). There are surprisingly large genetic differences between individuals from the same population; indeed, recent mitochondrial DNA evidence shows greater variation within regional populations than that shown between historical human races. Could individuals of a species look different today than individuals of the same species looked many generations ago? These ducks spent time on both land and water. Experts are tested by Chegg as specialists in their subject area. 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. 2. Could individuals of a species look different today than individuals of the same species did many generations ago? On average, what effect does genetic drift have on the differences between populations? Yes, some individuals can change a little and pass those changes on to their offspring. Why or why not? Consider the following hypothetical scenario: An ancestral species of duck had a varied diet that included aquatic plants and terrestrial plants and insects. How has evolutionary biology demonstrated that adaptations arise through selection acting on genetic variation? 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. Explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Our experts can answer your tough homework and study questions. Get plagiarism-free solution within 48 hours. - Theory of Evolution & Natural Selection. Yes, some individuals with certain traits are more likely to survive and pass those traits 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. In evolutionary biology, reciprocal altruism is a behaviour whereby an organism acts in a manner that temporarily reduces its fitness while increasing another organism's fitness, with the expectation that the other organism will act in a similar manner at a later time.. Yes, when the environment changes, individuals with certain inherited traits survive and will be able to reproduce. Why don't other animals have as many genetic mutations as humans? Why is it that chimpanzees have 99% the same DNA as humans, yet the one percent distinguishes us to such a degree? No other species has ever wielded such power, and no species could. a. How different are the various functional traits among the different species of deer? Science Advances. What would such an evolutionary development look like? A. c. more they will differ from one another in adaptations. B. \\ c. They have the same phenotype. Different finch species live on different islands. Nam lacinia pulvinar tortor nec facilisis. Biologists believe that ducks evolved from land birds that did not have webbed feet. The correct answer is (c) Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. Why is genetic variation within a species important to conservation? 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. A characteristic of an organism that can change in res. Yes, all individuals can change a little and pass those changes on to their offspring. Humans share common biological constraints b. 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. Could individuals of a species look different today than individuals of the same species did many generations ago?
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