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Below is an essay on "Biology" from Anti Essays, your source for research papers, essays, and term paper examples.

Chapter 1
Introduction: Biology Today

PowerPoint® Lectures for
Campbell Essential Biology, Fifth Edition, and Campbell Essential Biology with Physiology, Fourth Edition – Eric J. Simon, Jean L. Dickey, and Jane B. Reece

Lectures by Edward J. Zalisko

© 2013 Pearson Education, Inc.

Biology and Society: Biology All Around Us
• We are living in a golden age of biology. • Scientists are studying a myriad of questions that are relevant to our lives.
– How can errors in cell growth lead to cancer? – How do plants trap solar energy? – How do living creatures form ecological networks and how do human activities disrupt them?

© 2013 Pearson Education, Inc.

Biology and Society: Biology All Around Us
– How did the great diversity of life on Earth evolve from the first microbes and how does such evolution have an impact on human health? – How do mutations in genes lead to disease? – How can DNA—the molecular basis of heredity— be used in forensic investigations?

© 2013 Pearson Education, Inc.

Figure 1.0

THE SCOPE OF LIFE
The Properties of Life
• Biology is the scientific study of life. • The study of biology encompasses
– a wide scale of size and – a huge variety of life, both past and present.

© 2013 Pearson Education, Inc.

Figure 1.1a

(a) Order

(b) Regulation

(c) Growth and development

(d) Energy processing

Figure 1.1b

(f) Reproduction

(e) Response to the environment

(g) Evolution

Figure 1.1ba

(a) Order

Figure 1.1bb

(b) Regulation

Figure 1.1bc

(c) Growth and development

Figure 1.1bd

(d) Energy processing

Figure 1.1be

(e) Response to the environment

Figure 1.1bf

(f) Reproduction

Figure 1.1bg

(g) Evolution

Life at Its Many Levels
• Biologists explore life at levels ranging from the biosphere to the molecules that make up cells.

© 2013 Pearson Education, Inc.

Figure 1.2-1

1 Biosphere 2 Ecosystems 3 Communities

4 Populations

5 Organisms...

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