French biologist Jean Baptiste Lamarck suggested that when body parts or organs of different living things are similar in structure the organisms are biologically related. He called such similar body parts of organs "homologous".
Assignment: Write a paragraph answering these two questions:
• When different animals have similar structures, is it because they are related or because they share similar environments?
• If different animals have homologous structures, what would that indicate about their evolutionary history?
Due day: Monday, February 6th.
Credits: 5 homework credits.
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