SWS 2007 Study Guide - Midterm Guide: Anaerobic Organism, Homo Sapiens, Chemotroph

• School: University of Florida
• Department: Soil and Water Sciences
• Course: SWS 2007
• Professor: Bonczek, James Lee

Document Summary

Week 1: know the 2 largest water users in the typical home. Toilets use more water than clothes washers: know the average daily and annual household water use. 350 gallons: know the dimensions of the earth and the volume of water on earth (mi3). Volume of water on earth: 326 million mi cubed: know the percentage of total earth water that is readily available freshwater. 0. 8: water appeared between 3. 5 and 4. 3 billion years ago. K(cid:374)o(cid:449) the (cid:1007) pote(cid:374)tial sour(cid:272)es of earth"s (cid:449)ater discussed in class. Ceres, because it contains a lot of water: know the % of water in living systems. 70: know 3 reasons why water is an ideal medium for life processes. Transports nutrients: the earliest organisms on earth were anaerobic and autotrophic. Anaerobic- organisms that live in low/absence of oxygen environments. Autotrophic- self-feedi(cid:374)g orga(cid:374)is(cid:373)s that (cid:272)a(cid:374)"t (cid:272)o(cid:374)su(cid:373)e other orga(cid:374)is(cid:373)s for (cid:272)ar(cid:271)o(cid:374) or e(cid:374)ergy: know the difference between photo autotrophs and chemoautotrophs.