ES 100 Lecture Notes - Lecture 3: Chon, Nucleoid, Thermodynamics

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1:31 pm: elements of life, matter: everything that has mass and takes up space, add heat to mass, you change its state. S,l,g,plasma: conservation of matter: neither created or destroyed, but transformed, elements. Substances that cannot be broken into simpler forms by originally chemical rxns: 122 of them, chonps make up living organisms, made of atoms. Smallest particles exhibiting characteristics of elements: p,n,e, molecules, compound. Substance composed of different kinds of atoms: molecule, two or more atoms joined together, chemical bond. Force that keep elements together: takes energy to make, break bond, releases energy, ph scale, potential of hydrogen/power of hydrogen, acids. Substances that release hydrogen ions in water: 0 to 7, bases. Co2 and water: animals get energy this way, breathing intakes oxygen. Food chain and webs: photosynthesis is the base of all ecosystems so, producers do this, productivity, biomass produced in given area in specific time period, primary productivity, photosynthesis.

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