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GEOL 101: Geobiology II: Lecture 19

by: Natalee Stanton

GEOL 101: Geobiology II: Lecture 19 101-017

Marketplace > University of South Carolina > Geology > 101-017 > GEOL 101 Geobiology II Lecture 19
Natalee Stanton

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Geology 101-017
Class Notes
Geology 101
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This 2 page Class Notes was uploaded by Natalee Stanton on Monday February 29, 2016. The Class Notes belongs to 101-017 at University of South Carolina taught by in Winter 2016. Since its upload, it has received 24 views. For similar materials see Geology 101-017 in Geology at University of South Carolina.


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Date Created: 02/29/16
GEOL 101­  Geobiology – Life Interacts with the Earth Part II  Geobiological events in earth’s history ­ Radiation of life – the Cambrian explosion  Marine life  o Evolutionary radiation o Work of natural selection  o All major groups formed  o Advent of shells on body  ­ Mass extinctions of Phanerozoic life o Mass extinction at 429 Ma o Mass extinction At 364 o End – Permian mass extinction – 250 Ma o Mass extinction at 208 Ma o End – cretaceous mass extinction – 63 MA  When the dinosaurs died off   Astrobiology – the search for extraterrestrial life o Places to look for extraterrestrial life  Habitable zones around stars  Environments in our solar system  Mars  Other places? Sample Exam Questions Organisms that produce their own energy are referred to as __.  a. Autotrophs  b. Chemotrophs c. Phototrophs d. Heterotrophs  The pathway through which a chemical element or molecule moves between the biologic  and environmental components of an ecosystem is called a ____.  a. Biogeochemical cycle b. Biomicrobial cycle  c. Geometabolic cycle  d. Geosynthesis cycle  Sedimentary features that form from the interaction of microbes with their environment  are called___. a. Nodules b. Stromatolites c. Branching columns  d. laminations Ecosystems are composed of ___ and ___ that function in a balance manner.  a. Multicellular organisms, single­celled organisms b. Plants, animals  c. Organisms, plants  d. Organisms, geologic components 


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