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inner fish
1. Why is it important (or interesting) to find transitional fossils?
2. What are the different lines of evidence that point to a shared ancestry among ourselves and other vertebrates? Invertebrates?
3. What processes (evolutionary, developmental, other) result in the changes in animal
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- 1. Why is it important (or interesting) to find transitional fossils? 2. What are the different lines of evidence that point to a shared ancestry among ourselves and other vertebrates? Invertebrates? 3. What processes (evolutionary, developmental, other) result in the changes in animal type the answer6. Organisms classified as “birds” share a common feature. What shared derived character defined this taxonomic group? 7. What feature is present in all animals but is not present in birds and reptiles? 8. Reptiles, birds, and mammals are amniotes. I’m addition to an amniotic egg, the common ancestor of all reptiles, birds, and mammals had a thick epidermal layer of scales partially composed of a protein called keratin. Keratinized skin helps prevent water loss in terrestrial environment. A. what type (or form) of Keratinized epidermal structure represents the ancestral character state of all reptiles, birds, and mammals?Species Embryo (A-F) Describe the Anatomical Changes from Early to Late Stages Human Chicken Rabbit Tortoise Salamander В Fish A Guide Questions: 1. Look again at the six embryos in their earliest stages. Describe the patterns you see. What physical similarities exist between each of the embryos? 2. Does this suggest an evolutionary relationship? Explain how these embryos can be used as evidence of a common ancestor between each of these six organisms.
- TRUE OR FALSE 1. The fossil record provides a sweeping overview of the history of life over geologic record 2. A change in the regulation of a developmental gene may have fewer harmful side effects than a change to the sequence of the gene. 3. Synapsids possess an opening known as the occipital fenestra behind the eye socket 4. In some very late cynodont the articular and quadrate bones migrated into the ear region, where they functioned in transmitting sound 5. Fossils contain isotopes of molecules that accumulated in the organisms when they were alive.In 1798, a stuffed platypus specimen was delivered to the British Museum. Reports that it laid eggs created much confusion. To modem biologists, a platypus is clearly a mammal. It has fur and the females produce milk. Young animals have typical mammalian teeth that are replaced by hardened pads of the bill as the animal matures. Why do you think modem biologists can more easily accept that a mammal can have some reptilelike traits than scientists who were considering this animal in the late 1700s?Activity 4. Analyzing Cladograms Use the following cladogram to answer the questions below. Ray-finned fish Rodents & rabbits Sharks Amphibians Primates Crocodiles Birds Hair Eggs with shellt Amniotic egg Four limbs Bony skeleton Vertebrae Figure 8. Cladogram. Taken from https://www.warrencountyschools.org/userfiles/1576/Classes/19431/ClassificationWorkbook.pdf. Guide Questions 1. What separates rabbits/primate from the crocodiles on this cladogram? 2. Which organism is most related to the rodents and rabbits on this cladogram? 3. What separates sharks from ray-finned fish in this cladogram? 4. What 5 traits do the bird and its closest relative share? a. b. c. d. е. 15 5. Which organism will have DNA most similar to the bird? Why? 6. Which organism's DNA will differ the most from the bird? Why?
- Match the descriptions/examples types of evidence that support evolution. 1.Biogeography 2.Comparative Embryology 3.Comparative Anatomy 4.Molecular Biology A.Organisms in New Zealand are more similar to organisms in Australia than they are to organisms in North America . B.The embryos of many species have gill pouches even though the gill pouches are not used in these species . C.The forelimbs of the human ,cat ,whale and bat have many similar bones despite the fact that the forelimbs have different functions . D.The Human genome is 98% identical to the Chimpanzee genome .What's More Activity 3. Deepening The Concepts Directions: Answer the following questions. 1. How does (a) relative dating and (b) absolute/radioactive datine determine the age of fossils? 2. How does embryology provide evidence for evolution? 3. How do homologous and vestigial structures provide evidence for evolution? 4. What could be possible for some species belonging to the same family to be presently living in various locations on Earth? You can furthel support your answer with an example.PART II. COMPARATIVE ANATOMY AND EMBRYOLOGY EVIDENCE > Using the information in the Reading file part Il and textbook reading, answer the following questions: 1. Whales possess vestigial organs in the form of pelvic girdle and hind limb bones. How would you explain this? Page 3 of 6 Evolution Lab Exercise Report (by Dr. Lapik) 2. How can you explain that, while forelimbs of bats and human arms are used for vastly different purposes, they do have similar anatomy? 3. How would you explain the presence of gill slits in embryos of animals that do not form gills?
- Directions: Use the cladogram below to answer the questions Ray-finned fish Rodents & rabbits Crocodiles Sharks Amphibians Primates Birds Eggs with shelle Hair Amniotic egg Four limbs Bony skeleton Vertebrae 7. What trait separates amphibians from primates on this cladogram? What separates rabbits and primates from crocodiles on this cladogram? 9. Which organism is most related to the bird on this cladogram? 10. What 5 traits do these two organisms share? 11. Which organism will have DNA most similar to the bird? 12. Which organism's DNA will differ the most from the bird? 8.1. Which of the following is the most reliable source that taxonomists use to classiny mi anatomy behavior developmental patterns biochemistry 2. Circle all of the following scientific names for the green toad that are written correctly. bufo Regularis Bufo Regularis Bufo regularis Bufo regularis Bufo Regularis 3. Which level of classification is represented by the top of evolutionary trees? Kingdom Order Family Species Class 4. Place the hierarchy of classification in order from the broadest (1) to the most specific (8) category. 1. 2. 3. 4. 5. 6. 7.A. How did Charles Darwin explain his observations? 1. Species of tortoise and finch varies from island-to-island? 2. Fossil of different animals have similarities. 3. There are fossil of extinct animals.