EEB268H1 Lecture 1: Lecture 1 - Introduction & Eukaryotic Algae
25 Dec 2015
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Mariposa lily (from colorado: newcomer to planet. No greenhouse effect on mars b/c atmospheric pressure so low: = very cold temperatures, = no plants. Has atmosphere that can provide greenhouse effect = moderate temperatures. Plants are the reason why atmosphere exists: photosynthesis, 21% of oxygen exists on this planet b/c of plants. Earth has liquid water: allows biochemistry of life to occur. In mars: in presence of solar radiation, water gets split, splitting produces free oxygen and hydrogen protons, creates iron oxides, so any amount of liquid water on mars would become iron oxide (that"s why mars is red) This didn"t happen on earth: photosynthesis makes o2 and c(h2o, o2 binds with hydrogen protons produced from splitting water creating. Photosynthetic organisms: a: giant redwood, b: alpine plant, d: single-celled algae. Sessile (non-motile: c: flower, e: fungi. Not ingestors: pac man is an ingestor, abcde, have to assimilate their food, abc.
