lecture_notes_11_30_07 - Lecture Notes November 30, 2007...

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Lecture Notes November 30, 2007 DIVERSITY OF LIFE I: Overview of Diversity Section 1. Be able to name and recognize the major taxa that we cover 2. Understand the basic body plan and other distinguishing characteristics of each taxon 3. Name some organisms belonging to each taxon 4. Place an unknown organism within an appropriate taxa 5. Understand the major branch points of current phylogenetic systems Essential functions of Living Organisms: Obtain Energy and Nutrition Maintain Homeostasis Maintain Support against Gravity Respond to Stimuli Move Survive to Reproduce ORGANISM/ENVIRONMENT RELATIONSHIPS An ORGANISM is an OPEN SYSTEM, exchanging matter and energy with its surroundings The ENVIRONMENT is the setting within which an organism can function as a living system and outside of which it is no longer capable of living. Taxa can be described by the “body plans” of their organisms. The different groups perform the functions in different ways. Contrast Environmental Pressures of the Ocean vs. Terrestrial Environments Major Controlling Abiotic Feature of the Oceans: Sea Water The Ocean Environment Salinity O 2 /CO 2 Concentrations Temperature Light Salinity levels are relatively uniform; temperature, oxygen levels, and nutrients (in
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This note was uploaded on 04/29/2008 for the course BIOCORE 301 taught by Professor Howell during the Fall '07 term at Wisconsin.

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lecture_notes_11_30_07 - Lecture Notes November 30, 2007...

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