Concepts and Methods in BiologyBiology RevisitedA. What is life?1. Experience and education refine our questions and our answers.2. Consider the meaning of "alive."3. This book is biology revisited. It will provide:a. Deeper understanding.b. A more organized level of understanding.B. To biologists, life reflects its ancient molecular origins and its degree of organization. Life is:1. A way of capturing and using energy and materials.2. A way of sensing and responding to specific changes in the environment.3. A capacity to reproduce, grow, and develop.4. Capable of evolving.I. DNA, Energy, and LifeA. Nothing Lives Without DNAl. Living and nonliving matter are composed of the same particles, operating according to laws governing energy.a. Deoxyribonucleic acid, or DNA, is the special molecule that sets the living world apart from the nonliving.b. DNA carries the hereditary instructions for assembly of proteins.2. Each organism is part of a reproductive continuum that extends back......
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