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18 Cards in this Set

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Control Variable
A factor that is prevented from changing during an experiment
Protozoa
(singular: Protozoan) Single-celled microscopic, animal-like protists in the kingdom Protisia
Bacteria
When spelled with a capital B, it is the name of one of the 3 domains of living things; all members are bacterial
miroorganism
(also called microbe) Organism studied with a microscope; includes the viruses
microbiology
The study of microorganisms
cell theory
Theory formulated by Schleiden and Schwann that cells are the fundamental units of all living things
variable
anything that can change in an experiment
Koch's Postulates
Four postulates formed by Robert Koch in the 19th century; used to prove that a particular organism cauess a particular disease
product
The material resulting from an enzymatic reaction
antibiotic
A chemical substance produced by microorganisms that can inhibit the growth of or destry other microorganisms.
germ theory of disease
Theory that microorganisms (germs) can invade other organisms and cause disease
algae
(singular: alga) Photosynthesis, eukaryotic organisms in the kingdoms Protista and Plantae
antibiosis
The natural production of an antimicrobial agent by a bacterium or fungus
virus
A submicroscopic, parasitic, acellular microorganism composed of a nucleic acid (DNA or RNA) core inside a protein coat
spontaneous generation
The theory that living organisms can arise from nonliving things
experimental variable
The factor that is purposely changed in an experiment
hypothesis
a tentative explanatin for an observed condition or event
prediction
The expected outcome if a hypothesis is correct