Ch_01_Lecture_1[1]

Ch_01_Lecture_1[1] - Chapter 1 Biology: Exploring Life 1...

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1 Chapter 1 Biology: Exploring Life
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2 What is biology? How do you define it? 1: a branch of knowledge that deals with living organisms and vital processes 2 a: the plant and animal life of a region or environment b: the life processes especially of an organism or group – Merriam-Webster Dictionary Biology is a broad collection of sub-disciplines such as evolution, ecology, zoology, cell biology, and genetics
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3 e.g., what are some common characteristics of life? All living organisms are composed of cells, which are the basic units of life All life forms are related All life forms use DNA and RNA. The genetic code is virtually universal Structure and function are related Life evolves Core themes in biology: 1. Can we uncover some common concepts that underlie all biological study? 2. How do biologists organize their subject matter?
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4 Biosphere Atom THE SCOPE OF BIOLOGY 0 1.1 Life’s levels of organization define the scope of biology Levels represent life’s structural hierarchy Each level built of successively lower levels of organization
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5 Biosphere Ecosystem Florida coast Community All organisms on the Florida coast 0 An ecosystem – all the organisms living in a particular area As well as the nonliving environmental components All the living organisms in an ecosystem Make up a community
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6 Biosphere Ecosystem Florida coast Community All organisms on the Florida coast Population Group of brown pelicans Organism Brown pelican 0 A population a localized group of individuals of a species An individual living entity Is an organism
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This note was uploaded on 04/07/2008 for the course BIO 100 taught by Professor Zhongma during the Spring '08 term at Truman State.

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Ch_01_Lecture_1[1] - Chapter 1 Biology: Exploring Life 1...

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