bio 9.2.16

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9.2.16 Basic Questions in Biology 1. Origin: Where did the organisms come from? 2. Diversity: How can we account for the variety? 3. Adaptations: How can we explain the specializations? 4. Scale of Nature: what is the basis for the ladder of life? Two Hypotheses 1. Divine Creation: God created organisms exactly as we see them today by a miracle Species do not change They are “fixed” Creation occurred in the recent past ~6000 years ago Prevailing paradigm for 2000+ years Consistent with the view that miracles occur and God intervenes in daily affairs Its usefulness began to fail ~400 ears ago o Ex. It didn’t explain fossils or their arrangement It was good hypothesis because: o It was simple It was not good hypothesis because: o It depends upon supernatural explanations—miracles Divine creation was the accepted explanation for the 4 questions This was the situation until the 1800s Jean Baptiste Lamarck came along and claimed 2. Evolution Hypothesis o Organisms change in appearance over time
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