Homology vs. Analogy Worksheet
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Part-2-Homology-Assignment -HomologousandAnalogousStructuresWorksheet (1)
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Homology vs. Analogy Worksheet 1.The wings of a bat and the wings of a butterfly are similar in that they both allow the organisms to fly. Are bats and butterflies closely related? ___________________ Are the wings on these two organisms Homologous or Analogous Structures? _______________ 2. A duck and a platypus are similar in that they both lay eggs. Are ducks and platypuses closely related? _______________ Is egg laying in these two organisms an example of a Homologous or Analogous trait? _____________ 3. Humans, Chimpanzees, and Gorillas all have similar hand structures. Are humans, chimps, and gorillas closely related? _______________ Are the hands in these organisms examples of Homologous or Analogous structures? ___________ 4. Pigs and deer have similar ankle bones. Are pigs and deer closely related? _______________ Are the ankle bones of these organisms examples of Homologous or Analogous structures? ___________ 5. A shark and a penguin are similar in that they both have flippers to propel them through the water. Are sharks and penguins closely related? _______________ Are flippers in these two organisms an example of Homologous or Analogous structures? ___________ 6. Dogs and cats have similar paws. Are dogs and cats closely related? _________________ Are the paws of these two organisms an example of Homologous or Analogous structures? _________________ 7. Monarch and Blue Morpho Butterflies have similar wings. Are monarchs and morphos closely related? _________________ Are the wings of these two organisms an example of Homologous or Analogous structures? _________________ Homology vs. Analogy Worksheet 1. Which species on the chart (A,B,C,D,E,F) is the common ancestor? ___________ 2. Did the round nose of Species E and Species F come from the common ancestor? __________ 3. Is the round nose of Species E and Species F a homologous structure? ____________ 4. Did the square nose of Species D and Species G come from the common ancestor? ____________ 5. Is the square nose of Species D and Species G a homologous structure?_____________ 6. Are the cat ears of Species D and Species F homologous structures?_______________ 7. Are the smiles of Species E and Species G homologous structures? _______________ Homology vs. Analogy Worksheet - KEY 1.The wings of a bat and the wings of a butterfly are similar in that they both allow the organisms to fly. Are bats and butterflies closely related? No – Bats are mammals, butterflies are insects Are the wings on these two organisms Homologous or Analogous Structures? Analogous since the animals are not closely related, so the wings likely developed independent from each other rather than from a common ancestor. 2. A duck and a platypus are similar in that they both lay eggs. Are ducks and platypuses closely related? No, one is a bird and one is a mammal Is egg laying in these two organisms an example of a Homologous or Analogous trait? Analogous structures since the animals are not closely related, so the egg laying capability likely developed independently rather than from a common ancestor. 3. Humans, Chimpanzees, and Gorillas all have similar hand structures. Are humans, chimps, and gorillas closely related? Yes, both are mammals Are the hands in these organisms examples of Homologous or Analogous structures? Homologous since the organisms are closely related so the hands likely came from a common ancestor. 4. Pigs and deer have similar ankle bones. Are pigs and deer closely related? Yes, both are mammals Are the ankle bones of these organisms examples of Homologous or Analogous structures? Homologous since the organisms are closely related so the shape of the ankle bones likely came from a common ancestor. 5. A shark and a penguin are similar in that they both have flippers to propel them through the water. Are sharks and penguins closely related ? No, one is a bird and one is a fish Are flippers in these two organisms an example of Homologous or Analogous structures? Analogous structures since the animals are not closely related, so the flippers likely developed independently rather than from a common ancestor. 6. Dogs and cats have similar paws. Are dogs and cats closely related? Yes, both are mammals. Are the paws of these two organisms an example of Homologous or Analogous structures? Homologous since the organisms are closely related so the shape of the paws likely came from a common ancestor. 7. Monarch and Blue Morpho Butterflies have similar wings. Are monarchs and morphos closely related? Yes, both are insects. Are the wings of these two organisms an example of Homologous or Analogous structures? Homologous since the organisms are closely related Homology vs. Analogy Worksheet 1. Which species on the chart (A,B,C,D,E,F) is the common ancestor? A 2. Did the round nose of Species E and Species F come from the common ancestor? Yes 3. Is the round nose of Species E and Species F a homologous structure? Yes 4. Did the square nose of Species D and Species G come from the common ancestor ? No 5. Is the square nose of Species D and Species G a homologous structure? No 6. Are the cat ears of Species D and Species F homologous structures? No 7. Are the smiles of Species E and Species G homologous structures? Yes Download 351.79 Kb. Do'stlaringiz bilan baham: 
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