Bio - Organization of Life (Lecture #1)

Bio - Organization of Life (Lecture #1) - J. Voltzow Biol....

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J. Voltzow Biol. 141 Organization of Life Biologist likes to organize = ORGANIZATION Hierarchical organization of life Atoms – smallest individual Ex: H vs. He Molecules – atoms put together Ex: Methane, Hemoglobin Organelles – molecules put together Ex: Mitochondria, Ribosome (precursor of proteins; rRNA), Structure cell *Cells – fundamental unit of life Ex: Multicellular Tissues – multicellular put together Organs – tissues put together (Digestion, Respiration) Ex: Snails histology – study of tissues (preserve tissue embedding agent) Fasciolaria hunteria – banded tulip shell Organ systems – put organs Ex: Digestive syst., respiratory syst. *Individual organisms – organs system put together – Natural Selection action WHOLE individual (not gene, feature ) Populations – individual organisms put together Communities – organisms live in a community (population) Ecosystems – biotic factors and abiotic factors Ex: snails, worms, birds climate (temperature), sand – substrate,
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This note was uploaded on 07/29/2011 for the course BIO 141 taught by Professor Voltzow during the Fall '10 term at Scranton.

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Bio - Organization of Life (Lecture #1) - J. Voltzow Biol....

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