By Peter J. Russell, Paul E. Hertz, Beverly McMillan
The right way to imagine and have interaction like a scientist! BIOLOGY: THE DYNAMIC technological know-how, 3rd version, permits you to strengthen a deep realizing of the middle recommendations in Biology and builds a powerful starting place for destiny classes. The authors clarify complicated rules in actual fact and describe how biologists acquire and interpret facts to check hypotheses concerning the dwelling global. Russell, Hertz, and McMillan will spark your interest approximately dwelling structures rather than burying it below a mountain of disconnected proof. you'll research what scientists learn about the dwelling international, how they realize it, and what they nonetheless have to study. The accompanying Aplia for Biology enhances the booklet through allowing you to head past rote memorization and achieve a real figuring out of key options. on hand with InfoTrac scholar Collections http://gocengage.com/infotrac.
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By contrast, animals are consumers: directly or indirectly, they feed on the complex molecules manufactured by plants. For example, zebras tap directly into the molecules of plants when they eat grass, and lions tap into it indirectly when they eat zebras. Certain bacteria and fungi are decomposers: they feed on the remains of dead organisms, breaking down complex biological molecules into simpler raw materials, which may then be recycled by the producers. As you will see in Chapter 54, much of the energy that photosynthetic organisms trap from sunlight flows within and between populations, communities, and ecosystems.
The information in RNA guides the production of proteins. A computer-generated model of DNA illustrates that it is made up of two strands twisted into a double helix. 4 The pathway of information ﬂow in living organisms. Information stored in DNA is copied into RNA, which then directs the construction of protein molecules. The protein shown here is lysozyme. © Cengage Learning 2014 © Cengage Learning 2014 CHAPTER 1 I N T R O D U C T I O N T O B I O LO G I C A L C O N CEPTS AND R ESEAR CH Copyright 2012 Cengage Learning.
All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. 6 Experimental Research Using Artificial Selection to Demonstrate That Activity Level in Mice Has a Genetic Basis 459 Focus on Basic Research Using the Hardy–Weinberg Principle 462 Insights from the Molecular Revolution Back from the Brink: Did humpback whales lose genetic variability when they squeezed through a population bottleneck?