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CH. 1. INVITATION TO BIOLOGY Objectives:      1.     Define the key characteristics of life and be able to distinguish living organisms from  nonliving matter. 2.     Describe the general pattern of energy flow through Earth’s life forms, and explain how  Earth’s          resources are used again and again (cycled). 3.     Explain what is meant by the term  diversity,  and speculate about what caused the great  diversity          of life forms on Earth. 4.     Understand how natural selection and evolution influence diversity of life. 5.     Understand the components of the scientific method. 6.     Explain how people came to believe that the populations of organisms that inhabit Earth  have          changed through time. 7.     Understand the limitations that are imposed on science and scientists.     Key Terms : cell tissues organs organ systems community ecosystem biosphere DNA enzymes inheritance reproduction development energy metabolism producers consumers decomposers receptors stimulus homeostasis species
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Bacteria Archaea Eukarya prokaryotic plants fungi animals mutation adaptive trait evolution artificial selection natural selection observations hypotheses prediction test models scientific theory variable control group experimental group mimicry     Lecture Outline Impacts, Issues: Lost Worlds and Other Wonders A.    Are there still parts of our world that are unexplored? 1.     Almost every week new organisms are being discovered. 2.     Exploring and making sense of nature is part of what biologists do. B.    How can the scientific study of life deepen your world?       C.    How Would You Vote? Should naming rights to new species be sold? 1.1      Life's Levels of Organization A.    Making Sense of the World 1.     Nature is everything in the world except what man has made. 2.     All people and professions try to understand nature. B.    A Pattern in Life’s Organization 1.     Biologists focus at many levels—from as small as the atom to as large as the environment. 2.     The cell, composed of “biological molecules,” is the basic unit of life.  3.     Multicellular organisms have increasingly complex levels of organization that result in tissues  >> organs >> organ systems >> organisms >> populations >> communities >> ecosystems >>  biosphere. 4.     Life is more than a sum of its parts. Life is an emergent property.
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This note was uploaded on 12/21/2010 for the course BIO 03 taught by Professor Garcia during the Fall '08 term at Los Angeles City College.

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