1.2 Unifying Themes of Biology – Reviewing – Flashcards
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Describe a biological *system.*
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changing, organized group of related parts that interact to form a whole.
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Give an example of how structure is related to function in living things.
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One example would be your teeth. When you eat, you bite into food with your sharp front teeth and chew with your grinding molars. All your teeth help you eat but, different types have different functions.
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Why is *homeostasis* essential for living things?
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Homeostasis maintains the constant internal conditions in an organism. It is important because cells function best with a limited range of conditions.
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What is the relationship between *adaptation* and natural selection?
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Natural selection leads to different adaptations in different environments.
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How are structure and function related to adaptation?
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All living things have body parts with different functions that help them survive.
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How is the process of natural selection involved in *evolution*?
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It is the change in the genetic make up.
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Do you think homeostasis is necessary at the level of a single cell?
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Yes, even if its early the cell still needs to regulate itself to ensure proper balance.
