ACC BIOL 1308 - Lecture Notes (38 pages)

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Lecture Notes



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Lecture Notes

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Pages:
38
School:
Austin Community College District
Course:
Biol 1308 - Biology Fundamentals

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Lecture PowerPoint to accompany Inquiry into Life Twelfth Edition Sylvia S Mader Chapter 1 Copyright The McGraw Hill Companies Inc Permission required for reproduction or display 1 1 The Characteristics of Life Biology Science of Living things Bio Life Logos Word of knowledge A laboratory science You live in your own unique Lab and you experiment all the time 1 1 The Characteristics of Life Life exists almost everywhere on the planet Earth 1 1 The Characteristics of Life Life exists almost everywhere on the planet Earth Earth possesses a great variety of diverse life forms 1 1 The Characteristics of Life Life exists almost everywhere on the planet Earth Earth possesses a great variety of diverse life forms All living things have certain characteristics in common Living Things Are organized Acquire materials and energy Reproduce Respond to stimuli Are homeostatic Grow and develop Have the capacity to adapt 1 2 The Classification of Living Things Science of Taxonomy Classification of living organisms based on similarities Not exciting not fun but sometimes we have to Just do It Hierarchical from top to bottom A specific name for an organism like Homo sapiens or E coli represents the very specific type of organism bottom of scheme 1 2 The Classification of Living Things Living organisms are assigned to groups based upon their similarities Systematics is the discipline of indentifying and classifying organisms Domains The highest largest category recent addition 3 domains 1 Archaea ancient bacteria unicellular like bacteria also simple cell structure prokaryote no nucleus but have distinct metabolism chemistry allowing them to exist in extreme environments 2 Bacteria unicellular prokaryote found everywhere 3 Eukarya unicellular to multicellular complex and organized cells with nuclei and organelles mitochondria Domain Archaea Archaea are singlecelled organisms that lack a membranebound nucleus Prokaryote Archaea can be found in environments that are too hostile for



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