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can't be seen with naked eye; they only have presence of genetic material or presence of protein in common with higher organisms; no tissues, diseases
viruses wrapped in protein, viroids RNA molecules, prions infectious proteins
protozoa (protists), alge, fungi (both mold and yeast) single celled generally (fungi can be uni or multicellular)
ecology of microorganisms
ubiquitous; everywhere in nature; air, water, soil, in and on other organisms
producers - organisms
photosynthesis converts light energy to chemical, basis of food chains and pyramids alga, some bacteria, some Archae - autotroph
Decomposers (or saprotrophs) are organisms that break down dead or decaying organisms; recycle nutrients via biogeochemical cycles
Nitrogen, Carbon, Sulfur, Iron, phosphorus, a pathway by which a chemical element or molecule moves through both biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth.
oxygen, soil, food, base of food chain indirect, harvest algae and guni (direct), enzymes (fermentation), drugs, (antibiotics, steroids, alcohols, proteins) recycling thru cycles, water purification; damage plants, animals, humans via disease; easy to grow, suitable for genetic engineering.
Schwann and Schleiden
Cell Theory - zooologist and botanist; all animal tissue and plant tissue are comprised of cells;
Golden Age; 4 postulates associating specific organisms with particular diseases; first proof microbbes are associate with disease, 25 pathogens discovered; petri plates and TSA soy agar; test tube sterile TSB soy broth
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