BIOL 1000 Chapter Notes - Chapter 3: Syphilis, Indohyus, Decomposer
31 Jan 2013
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Molecules organelles cells organisms ecosystems biosphere (refer to figure 3. 1) Biodiversity is the number of species that exist on the earth. The different types of organisms that live on earth can be classified into taxonomic categories. You could consider the fact that all organism have carbons found in their bodies, due to the fact, we use carbon to help in synthesizing of organic molecules. Example autotrophs (auto = self ; troph = nourishing ) are mostly plants which synthesize organic carbon molecules using co2 (inorganic molecule). Co2 is considered inorganic because it oxides with a carbon. Example heterotrophs are all animals carbon from living hosts or from products, wastes, or dead organisms. Example chemotrophs (chemo= chemical ; troph= nourishing ) obtain energy by co2. Selection is when some type of force affects the survival of individual organisms. This occurs when a large population is exposed to a lethal factor and only the resistant individuals can survive to reproduce.
