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1. a. Explain why reptiles are more successful than amphibians on land.
b. Explain how sharks and bony fish differ with respect to neutral buoyancy, skeleton and osmoregulation
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- . How might we and other species be affected if mostor all amphibians (Core Case Study) were to goextinct?1. Draw and describe metamorphosis in amphibians. Describe it thoroughly and do not just copy form somewhere, please.Neutral buoyancy... A. Is possible in bony fish when a swimbladder is present B. Is achieved during flight in birds because of the presence of air sacs in some of their bones C. Is achieved by jellyfish because of their plate-like shape D. Is possible in some fishes that use their fins as hydrofoils when they swim E. All of the above
- 2. Compare the anatomy of the butterfly and bird wing below. 1. butterfly wing bird wing What is the function of each of these structures? 2. How are they different in anatomical form? Give specific differences. 1 Compare the overall body structure of the cave fish and the minnow below. ******** cave fish **** ** minnow 2) 7.143 SVAT 1. Notice that the Cave Fish's eye. Cave fish have eyes, but they do not work. Based on the species name, why does it not need to be able to see? sto vid Does the appearance of the cavefish and the minnow suggest a common ancestry? Why? 3. Assume the two fish came from the same common ancestor. Why might the cave fish have evolved without eyesight? In your explanation use the following terms: trait, inherited, natural selection. What kind of alternative sensory adaptation would you hypothesize the cave fish has to allow it to navigate a cave without sight, including catching and eating food?1. Briefly discuss the components of the shark’s vertebral column i.e. different sections, parts of the typical vertebra, and type of centrum. 2. Briefly discuss the basic components of the shark’s visceral skeleton. 3. Differentiate the basic parts of the shark’s pectoral girdle and pectoral fins with the pelvic girdle and pelvic fins.4. Describe how the scales are arranged on the trunk & tail of a tilapia.5. Explain how the swim bladder controls buoyancy.
- Gills are found in a. fish. b. amphibians. c. aquatic invertebrates. d. All of the choices are correct.1. Observe the behavior of the live goldfish. Note the movement of the operculum. What is its function? Does a shark have an operculum? 2. Examine the model of the bony fish. Compare the fins, shape of the tail, scales and other external features with the shark. How do the fins of fish contribute to the evolutionary story of animals evolving to life on land? 1. Observe and compare the features of the amphibian specimens. 2. The frog will be used to review vertebrate anatomy. Begin by examining the thin skin of the frog. How does it compare to the skin of a reptile? Would the frogs skin help protect it against water loss? How is the frog able to supply its body tissues with enough oxygen even if there is some mixing of oxygenated deoxygenated blood? Amphibian, literally means “living on both sides”. Explain why amphibians have that name. What characteristics do reptiles have that make them more suited for terrestrial life than amphibians? Why are birds thought of as flying…#11 Match the benefit to the correct chordate adaptation.: Match each number to the letter it matches with: A. allows organisms to walk on land B.allows organisms to lay eggs on land, without water C.allows organisms to generate their own heat D.provides a rigid structure for muscles ------------------------------------ 1.amniotic eggs 2.seeds 3.endotherm 4.tetrapod 5.ectotherm 6.bony skeleton 1.
- 8. What is the difference between an open and a closed circulatory system? 9. What is a radula? What is it used for? 10. Define regeneration. 11. Identify distinguishing traits of most arthropods. 12. What is molting? Why does it occur? 13. Name three arthropod head appendages and state their functions. 14. Describe two structures that allow arthropods to breathe air.A. List some invertebrates who are endotherms B. How can something be ectothermic but also maintain homeothermy? C. What are some ways that ectotherms (so called cold blooded) animals can adjust their temps behaviorally?Match the respiratory organs of FROGS to their functions. 1. Nasal Cavity A. The short tubes of a frog’s breathing system that leads from the larynx to the lungs; passageway of air into the lungs. 2. Glottis B. Amplify the advertisement call of the male and attract females. 3. Pharynx C. Where gases are exchanged between the air and the bloodstream. 4. Trachea D. Passageway of air from the external environment. 5. Larynx E. Allows air to enter glottis then into the larynx. 6. Vocal Sacs F. Controls airflow in and out of the respiratory passages. 7. Bronchi G. Connects the pharynx with lungs. 8. Lungs H. Contains vocal cords; used to conduct air to the lungs and as a voice box so the frog can communicate. 9. Alveolar Ducts I. Exchange point where CO2 leaves and O2 enters the blood. 10. Alveoli J. Tiny tubes that connect the respiratory bronchioles to alveolar sacs. K. Divides the left and right lung.