Living organisms are descended from pre-exisiting living ones [single root, vertical transmision]
Idea that life arose spontaneously from non-living matter
First modern experiment in biology. Positive control with meat -> maggots. Negative paper on meat, no maggots. * Cheese cloth on meat -> maggots
a scientific discipline focused on classifying organisms and determining their evolutionary relationships
ordered division and naming of organisms.
Taxon / Taxa
one unit at any level, i.,e. a species, genus, order, etc.
studied photosynthetic algae and bacteria and heat resistant bacteria. Foundation made for bacterial classification system
drew lots of nice pictures of small microrganisms, named them protists. became a separate kingdom, also coined term phylogeny
Published a paper that suggested 5 kingdoms, which now included fungi. A sixth was added later
suggested that spontaneous life on earth occured once under drastically different conditions. Led to amino acids
Experiments suggested how mixtures of the organic compounds necessary for life could have arisen from similar compounds present on a primitive Earth. Tested in a beaker with electricity. 7 amino acids formed
Single layered microbial mats. Evidence for microbe life > 2 billion y/a
the evolutionary history of a species or group of related species. Can be morphological or molecular
similarity due to convergent evolution
similarity due to shared ancestor
analgous structures that evolved indepenetly. Mole exp or bacteria / fungi that produce antibiotics
Different species have gene, but come from common ancestor and functionality.
Same species, duplication event and divergence. exp. Hemologlobin
D iscovered that there were two major branches of prokaryotes; eubacteria and archaea bacteria by studying rRNA relationships among organisms. Led to the 3 domains: Archaea, Bacteria, Eukaraya
Any organism that is not a eukaryote [ euks have a true nucleous]
sustain themseleves without eating anything from other organisms. "Producers" from C02 and inorganic mlcls
obtain organic material from other organisms. Consumers
Source of energy is light
Source of energy is organic/inorganic
Plants: algae and Cynobacteria
unique to certain proks that use organic/inorgranic for energy but also produce
Use light as energy source but also consume.
Animals, Fungi and several prokaroytes like E.Coli
cannont grow without 02. "Obliged o2"
use 02 if present, otherwise fermentation or a dif. electron receptor. "Depends on which Faculty'
grow exclusively from fermentation. o2 is killer or they use dif electron receptor. "Obligated not o2"
Cell walls, made from carbohydrates and cross-linked amino acids
Dumb Kids Prefer Cheese Over Fried Green Spinach.
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species