Old World monkeys b. Webbed feet evolved convergently in most groups of aquatic tetrapods. The rest of them have webbed feet that help them in the water. eddibear3a and 8 more users found this answer helpful. (Rate this solution on a scale of 1-5 below), Log into your existing Transtutors account. Horned lizards use their horns to defend against predatory birds. Cynodont-descended mammals continued to survive while most other synapsids went extinct. 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 … b) While ducks were evolving webbed feet: With each generation, most ducks had about the same amount of webbing on their feet as their parents. 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. Their feet are webbed and this trait makes them fast swimmers. Flightless birds are birds that through evolution lost the ability to fly. 6.Webbed feet in ducks (Class Aves) and webbed feet in otters (Class Mammalia) represent an example of. She returned every week for 12 weeks to measure survival of tagged lizards. Labyronthodonts: short-legged, large heads with flat thick skulls and teeth with a distinctive folded pattern of dentin and enamel. © 2007-2021 Transweb Global Inc. All rights reserved. While ducks were evolving webbed feet: (a) With each generation, most ducks had about the same amount of webbing on their feet as their parents. They were aquatic and had scales and fleshy fins. Ducks are aquatic birds. Their feet are webbed and this trait makes them fast swimmers. a. genetic drift . Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose. Click here to get an answer to your question ️ Plants transfer water in the water cycle c. 3600 years ago . It looked like a duck. This observation led her to hypothesize that longer horns offer more protection against predation than do shorter horns. Get plagiarism-free solution within 48 hours, Your solution is just a click away! Biologists believe that ducks evolved from land birds that did not have webbed feet. 2. ï¬It is likely that ducks developed webbed feet because ducks need webbed feet for e cient swimming.ï¬ This attempt to explain the development of webbed feet in ducks most nearly matches the theory of evolution proposed by A. Jean Lamarck B. Charles Darwin C. Gregor Mendel D. Francis Crick 3. A researcher observed that lizards living in areas with predatory birds have longer horns than those in areas with no predatory birds. 3.6 million years ago . Ask a Similar Question. Module 5 â 7.6 (questions 6-9) 6. (It would be like trying to swim with your fingers spread apart.) Add your answer and earn points. The more they used their feet, the more webbed their feet became, so they got enough food to survive and reproduce.Due to chance mutations, all the ducks’ feet in the next generation had more webbing. 5 Incredible Duck Facts! Q6.8. (d) rudimentary hip bones in some large snake species A: The left over of a transitional form (lizard to snake?) The primary use for webbed feet is paddling through water. The amount of webbing on a duck's feet is a heritable trait. While webbed feet were evolving in ancestral ducks, with each generation: most ducks had about the same webbing on their feet as their parents Consider the following hypothetical scenario: An ancestral species of duck had a varied diet that included aquatic plants and terrestrial plants and insects. 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. However, extensive webbing is not always limited to an aquatic life style. But it definitely was not a duck. Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Cutaneous webbed feet are frequently referred to as âsimple webbed feetâ. bird species, including the webbed feet of ducks and penguins, most songbirds (such as sparrows and weavers) and pigeons, buzzards, vultures, eagles and gamebirds. This creature lays eggs like a reptile, has venom like a reptile, spurs like a chicken, excretes milk from belly patches to nurse its young, has fur that glows, webbed feet like a duck, and uses its sensor-filled duck-like bill to find aquatic prey like paddlefish do since it swims with its eyes closed. Therefore, they cannot feel the cold and have the ability to be in the water during cold weather. This is normal in many birds, such as ducks; amphibians, such as frogs; and mammals, such as kangaroos. e. homology . Explain: 1-2-3-4-5: Appeared in ducks because of a chance mutation. DDT is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. Webbed Feet: Homologous Trait or Analogous Trait? These ducks spent time on both land and water. The bones of the upper body suggest that Gansus was able to take off from the water, much like today's ducks. The 14 species of finches on the Galapagos Islands evolved from a single species that migrated to the islands several million years ago. Between 390 and 360 million years ago, the descendents of these organisms began to live in shallower waters, and eventually moved to land. Ducks are aquatic birds. Explain: 1-2-3-4-5: Appeared in ducks because of a chance mutation. This large, flightless, turkey-sized pigeon lived on the tropical island of Mauritius. Could individuals of a species look different today than individuals of the same species did many generations ago? They were therefore able to eat aquatic plants and get enough food to survive and reproduce.Ducks with more webbing were better at eating aquatic plants than ducks with less webbing, so the ducks with more webbing survived and reproduced better than ducks with less webbing.Ducks with less webbing needed to grow more webbing in their feet in order to improve their access to aquatic plants, which allowed them to survive better and reproduce more.Q6.10. Acanthostega (Devonian) had actual webbed feet with toes, but a shoulder and a tail like a fish. 36 000 years ago . With webbed feet and a ⦠As many years went by, the environment changed such that the aquatic food sources were much more plentiful than those on land. These ducks frequently crossbreed with other duck species, making identification challenging for many of their offspring. Biologists believe that ducks evolved from land birds that did not have webbed feet. Consider the following hypothetical scenario: An ancestral species of duck had a varied diet that included aquatic plants and terrestrial plants and insects. The answer is an unqualified (or "un-koalafied") no. The term âanalogous structuresâ comes from the root word âanalogy,â which is a device in the English language where two different things on a basis of their similarities. 190. 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. c. disruptive selection . See the Migratory Waterfowl and Upland Game Seasons pamphlet for more information. How does movement at a hinge joint differ from movement at a ball and socket joint? Webbed toes is the common name for syndactyly affecting the feet. Q6.1. Although platypuses and ⦠Ex: Chickens' non-webbed feet and ducks' webbed feet start out the same in embryo form, but due to expression of Gremlin and BMP4 proteins, webbed v. unwebbed feet are created Importance of Hox Genes for Speciation (c) webbed feet in frigate birds that never enter the water A: Again, they used to be able to swim but due to environmental changes they didnât have the need to. The webbing in the feet works just like flippers or boat paddles. Biologists believe that ducks evolved from land birds that did not have webbed feet. Biologists believe that ducks evolved from land birds that did not have webbed feet. d. homoplasy . Answer: While ducks were evolving webbed feet: (a) With each generation, most ducks had about the same amount of webbing on their feet as their parents. Some of them live in freshwater habitats while others live in saltwater. The amount of webbing on a duck’s feet is a heritable trait.Q6.8. 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. An international team of palaeontologists has found remains of some 50 specimens of a bird thought to be closely related to the last common ancestor of today's birds. rft-jwhg-kxz, What is the characteristics exhibited by all living organism, 5 reasons why we have to classify living organism. The amount of webbing on a duckâs feet is a heritable trait.Q6.8. Ducks and geese have palmate feet, where only the three front toes are webbed and the hind toe (called the hallux) is small and elevated. The amount of webbing on a duck's feet is a heritable trait. ... suggest they were strong swimmers with webbed hands and feet. Second: The evolution of living things is powered by natural processes. Their webbed feet help them in paddling or swimming in water. Appeared in ancestral ducks because they lived in water and needed webbed feet to swim. The amount of webbing on a duck’s feet is a heritable trait.Q6.8. 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. A fruit-eater, it had little reason to move fast or fly. The amount of webbing on a duck's feet is a heritable trait. It is not known if it quacked like a duck. Biologists believe that ducks evolved from land birds that did not have webbed feet. Analogous traits or structures are organs or structures which have evolved for the same purpose among different species who do not have common ancestors (Rye et el, ⦠Here's how it works: as the bird pulls its foot backwards through the water, the toes spread apart, causing the webs to spread out. b. terrestrial adaptations . How in the world did a creature as odd as the duck-billed platypus originate? Biologists believe that ducks evolved from land birds that did not have webbed feet. The duck's webbed feet aid in its ability to navigate bodies of water. or numbers? These transitional organisms were probably not walking, but could pull itself up onto the shore after food. It has hair and milk glands like a mammal, a rubbery bill and webbed feet like a water bird, and lays leathery, shelled eggs in burrows like many reptiles. All can come to make new friends, hey h0t girls' come jóīñ & hookup with me. The ape line is derived from the a. heart outlined. The amount of webbing on a duckâs feet is a heritable trait.Q6.8. Yet they also have five toes on each foot that help them to move around easily on land as well. BeLogistics | Best WordPress theme for logicstick companies. 188. This intervention was designed to allow students to confront any potential issues with their non-scientific reasoning while providing the opportunity to construct a scientific understanding of natural selection. Q6.8. The webs push more water than just a bird foot with spread-out toes would push. Start studying Duck … Tetrapods evolved from a group of organisms that, if they were alive today, we would call fish. The dodo is the tragic symbol of bird extermination. ... these are the actual bones which were pulled from the ground. Most ducks had more webbing on their feet than their parents. The ability to be able to move both on land and water is one of them for all expect the Sea Otter. Things which can be studied and understood. There are over 60 extant species, including the well known ratites (ostriches, emu, cassowaries, rheas, and kiwi) and penguins.The smallest flightless bird is the Inaccessible Island rail (length 12.5 cm, weight 34.7 g). This site is using cookies under cookie policy. 189. 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. (b) With each generation most ducks had a tiny bit more webbing on their feet than their parents. Actually, there are other animals that are not mammals or fish that look similar. The process of evolution is a continuous process, how to do romance with my g.f? While the monotremes are indeed warm-blooded, they like to play it cool: five degrees cooler than us at a chilled out 32C. Although the webbed feet allow them maneuver in the water with ease, they do slow … Google has many special features to help you find exactly what you're looking for. Which is an example of the founder effect? It swam like a duck. [28] Prehensile tails evolved in a number of unrelated species marsupial opossums , kinkajous , New World monkeys , tree- pangolins , tree- anteaters , porcupines , rats , skinks and chameleons , and the salamander Bolitoglossa . 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? b. You can specify conditions of storing and accessing cookies in your browser. Different finch species live on different islands. Webbed Feet Don't Make Relatives The research also suggests that some birds that have been grouped together because of similar characteristics actually evolved ⦠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. krishnamaharana9647 is waiting for your help. How is this best explained?Ducks with less webbing worked harder than ducks with more webbing to eat aquatic plants. Filling a gap in the evolution of … The amount of webbing on a duck’s feet is a heritable trait.Q6.8. During the time when hominins were evolving, the climate they inhabited was becoming a. cooler and drier b. warmer and drier c. hotter and more humid d. much colder . students from each class were interviewed before and after the treatment to examine any change in conceptual understanding. Was the final answer of the question wrong? (a) With each generation, most ducks had about the same amount of webbing on their feet as their parents. Evolution is the process by which modern organisms have descended from ancient ancestors. Get it solved from our top experts within 48hrs! There are not any nerves in the duck's webbed feet. Ducks, geese, and swans all have webbed feet. The amount of webbing on a duck's feet is a heritable trait. They evolved from a common ancestor. Evolution is responsible for both the remarkable similaritie Consider Ornithorhynchus, the weird duck-billed platypus, a semiaquatic animal from Australian and Tasmania. I 6491325600 While we think of mammals and reptiles as very different, at one time they shared a common ancestor, says Wes Warren of the Washington University School of Medicine in St. Louis. Most ducks had less webbing on their feet than their parents. The amount of webbing on a duck’s feet is a heritable trait.Q6.8. Bony webbed feet are one of the forms of complex webbed feet. However, they also had lungs that they used to breathe oxygen. What changes occur gradually over time that indicate the population is evolving?Within their lifetimes, some individual finches’ beaks change in size or shape.The proportions of finches having different beak sizes/shapes change across generations.Each finch’s learned ability to use its beak is automatically passed on to its offspring.All finches in each new generation develop the same new, improved beak size and shape.Q6.5. Ducks are popular for their distinctive triangular, webbed feet, but they have toe bones just like the other birds. This website uses cookies to improve your experience. If there is NO VARIATION in shell thickness within a population of snails, and no mutations occur, what happens to shell... (Hide this section if you want to rate later). P 567890 All types of ducks have waterproof feathers ; A unique system of blood vessels keeps their feet warm in icy weather; Not all ducks making a quacking sound; These birds can turn their heads backward to clean, or preen, their feathers; Male ducks … Then, using the hybridization technique to find out where the B.M.P. Castorocauda, a Jurassic Period mammal and beavers both have webbed feet and a flattened tail, but are not related. 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. 2). Appeared in ancestral ducks because they lived in water and needed webbed feet to swim. Dinosaurs are used more than almost anything else to indoctrinate children and adults in the idea of millions of years of earth history. Their feet are webbed and this trait makes them fast swimmers. 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 individuals of the same species would not look different.Q6.6. …, s we see across all life and the amazing diversity of that life. Coots have lobate feet, where the toes have a series of webbed lobes that open when the foot is pushed backwards—much like the base of a push pole used by duck hunters to traverse the marsh. While webbed feet were evolving in ancestral ducks,with each generation? …. d. 3.6 billion years ago Animals species with homologous traits or structures have similar organs or skeletal structures which provide evidence that they have a common ancestor. Were the solution steps not detailed enough? There are four subspecies of brown pelicans, two of which reside in the United States, the eastern brown pelican (Pelecanus occidentalis carolinensis) and the California brown pelican (Pelecanus occidentalis californicus).The California brown pelican, as of October 13, 1970 was listed as ⦠The webbed feet allow the animal to swim easily and quickly. Convergent evolution — the repeated evolution of similar traits in multiple lineages which all ancestrally lack the trait — is rife in nature, as illustrated by the examples below. Does the question reference wrong data/report The common ancestor of Anseriformes possessed non-webbed feet. They will also commonly search for food on land. Many generations later, almost all ducks had more webbing on their feet. Individuals of this species varied in the amount of webbing in their feet, with some individuals having more webbing and some having less. The anisodactyl toe orientation is well suited to perching and grasp-ing, especially when the hallux T he fact that birdsâ feet have a dinosaurian jizz is no coincidence, since birds In areas of heavy use of the insecticide DDT, y 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 … These involve only the skin between two toes. New World monkeys. Thanks … Search the world's information, including webpages, images, videos and more. Lastly, some waterfowl such as the … They have a lifespan of up to 10 years. Marsupials were around for at least 70 million years before they made it to Australia, according to Robin Beck, a ⦠Get it Now, By creating an account, you agree to our terms & conditions, We don't post anything without your permission, Looking for Something Else? Biologists believe that ducks evolved from land birds that did not have webbed feet. 7.The first life appeared on earth approximately. The marine mammals have been selected by evolution to move efficiently in the water, just as the fish have been. Answering the following Biology Lab questions.Q6.1. Description of Species: The brown pelican is the smallest member of seven species of pelicans. Complex webbed feet involve other tissues, like bones, blood vessels and even nerves. Nor were the ancient relatives of whales that you see pictured on this tree â such as Pakicetus. The webbing creates a flat and wide foot covering greater surface area that aids the birds to paddle through the water quickly and efficiently. While this mechanism for evolutionary change was discredited, Lamarckâs ideas were an important influence on evolutionary thought. In humans it is considered unusual, occurring in approximately one in 2,000 to 2,500 live births. 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. The graphs below represent her findings.What can you conclude from the researcher’s results?The hypothesis that longer horns offer greater protection against predation is supported.The hypothesis that longer horns offer greater protection against predation is NOT supported.The experiment is well designed, but the results are inconclusive about the hypothesis.The experiment is not well designed to test the hypothesis. Hippos likely evolved from a group of anthracotheres about 15 million years ago, the first whales evolved over 50 million years ago, and the ancestor of both these groups was terrestrial. Two key texts are Genesis 1:24â25 and Job 40:15â24. A major difference among finch species is in their beaks: both size and shape vary greatly.Assume that a population of one of these finch species is undergoing evolution by natural selection with respect to beak size and shape. It is characterised by the fusion of two or more digits of the feet. 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 … However, the Bible gives us a framework for explaining dinosaurs in terms of thousands of years of history, including the mystery of when they lived and what happened to them. 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. step by step answer.what is prohibited, bizworks"surface"customer"care"number" 09832416550, A pea plant that is homozygous for tall and heterozygous for green seed coat is crossed with a plant that is heterozygous for both traits punnet squar Charles Darwin and Natural Selection In the mid-nineteenth century, the actual mechanism for evolution was independently conceived of and described by two naturalists: Charles Darwin and Alfred Russel Wallace. a. b) While ducks were evolving webbed feet: With each generation, most ducks had about the same amount of webbing on their feet as their parents. Through ancestral character state reconstruction of the phylogeny of birds, we suggest that webbed feet evolved as follows (Fig.
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