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BIOL1022 CH25

QuestionAnswer
Eons Largest measurement of geological time (ex: Phanerozoic is the eon in which most of all complex multicellular life has arisen with a few exceptions).
Eras Notation for large spans of geological time within an Eon (ex: Mesozoic is colloquially known as the age of the Dinosaurs).
Periods Notation for smaller amounts of time within an Era (ex: the Quaternary Period is the period we live in currently).
Origins of Life Life arose under radically different conditions during the Archaean Period, eventually led to Oxygenic Photosynthesis, Carbon Fixation, & Nitrogen Fixation on separate occasions.
Miller Urey Experiment Experiment conducted in the 1950s to test the viability of the creation of organic compounds during the Archaean.
Cambrian Explosion Massive burst in multicellular biological diversity.
Stromatolites Mats of Cyanobacteria cells that trap mineral deposits. Serve as indirect evidence for early life.
Carbon Isotopic Data Since some isotopes are more readily incorporated into the bodies of organisms, it can be an important tool when classifying ancient fossils of microorganisms
Biomarkers Other organic compounds are more easily preserved than others and allow us to classify ancient organism remains
Eukaryote Supergroups Eukaryotes are divided into 5 supergroups, Excavata, The SAR which includes, Stramenopila, Alveolata, Rhizaria, then Archaeplastida (which has plants), Amoebozoa, & Opisthokonta (includes Animals & Fungi)
Endomembrane System Origins Originated by the infolding of the cellular membrane, allowed for more complex gene expression & genesis of membrane bound organelles
Created by: beaniao
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