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9 Cards in this Set

  • Front
  • Back
the "homology"
Very different things that share the same evolutionary history and have evolved in different ways to adapt to different living conditions
the "analogous"
contrasting structures that may look or work the same way, but have different biological origins
the human
the human
the human hand
in this walking mammal, the finger bones are essential to manipulating food, tools, and gesturing during conversation
the form and function
for many years, people didn't realize that humans, whales, and bats shared a common ancestor long ago; all three mammals have evolved the same finger bones to use in different ways, helping them grip, swim, and fly.
the bat
the bat
the bat wing
in thie flying mammal, the five finger bones are greatly elongated, providing support for the webbing that makes up much of a bat's wing
the whale
the whale
the whale flipper
in this swimming mammal, four finger bones are very long, supporting the long paddle-like flippers that help a whale maneuver through the water