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Slide 1 - Biology: What Is the Study of Life?
Slide 2 - Why Study Biology? Two important reasons for studying Biology: Biology is relevant to our everyday experience Medical advances Addressing needs of growing human population Challenges of decreasing rate of biodiversity Biotechnology advances
Slide 3 - Why Study Biology? Biology can be controversial Examples: Dealing with endangered species? Use of human fetal tissue in biomedical research? Safety of irradiated foods? Figure 1-1c
Slide 4 - What is Biology? It is the study of life. Branch of science A way of understanding nature. A human endeavor An attempt to understand, explain, integrate and describe the world of living things.
Slide 5 - What is Life? Living organisms: Highly organized and complex. Are composed of one or more cells. Contain a blueprint of their characteristics. Acquire and use energy. Carry out and control numerous reactions.
Slide 6 - What is Life? Living organisms: Grow. Maintain constant internal environment. Produce offspring. Respond to environmental changes. May evolve. Insert F01_03b
Slide 7 - Biology is a Branch of Science Both an activity and body of knowledge. A way of understanding the natural world. Scientists make predictions and test those predictions.
Slide 8 - Major Themes in Biology Evolution by Natural Selection Inheritance Cells Biological Classification Bioenergetics Homeostasis Ecosystems
Slide 9 - How is Biology studied? Insert F01-06
Slide 10 - Scientific Method Begins with observations about our surroundings. Next, ask questions about the phenomena we are observing.
Slide 11 - Scientific Method Followed by generating a hypothesis. Tentative explanation to the question.
Slide 12 - Scientific Method Testing Scientists perform tests to determine the accuracy of their hypothesis.
Slide 13 - Scientific Method Explanation It is a hypothesis that has passed the widest and most comprehensive series of tests. Still subject to review and consideration. May be elevated to a theory = well demonstrated principle.