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CH. 1/ Module 1

Vocabulary

WordsDefinition
Metabolism The sum total of all processes in an organism which convert energy and matter from outside sources and use that energy and matter to sustain the organism’s life functions.
Anabolism The sum total of all processes in an organism which use energy and simple chemical building blocks to produce large chemicals and structures necessary for life.
Catabolism The sum total of all processes in an organism which break down chemicals to produce energy and simple chemical building blocks.
Photosynthesis The process by which green plants and some other organisms use the energy if sunlight and simple chemicals to produce their own food.
Herbivores Organisms that eat only plants.
Carnivores Organisms that eat only organisms other than plants.
Omnivores Organisms that eat both plants and other organisms.
Classification Taking a great deal of data and trying to organize it into a fairly simple system.
Producers Organisms that produce their own food.
Consumers Organisms that eat living producers and/or other consumers for food.
Decomposers Organisms that break down the dead remains of other organisms.
Autotrophs Organisms that are able to make their own food.
Heterotrophs Organisms that depend on other organisms for their food.
Asexual reproduction Reproduction accomplished by a single organism.
Sexual reproduction Reproduction that requires two organisms.
Inheritance The process by which physical and biological characteristics are transmitted from the parent ( or parents ) to the offspring.
Mutations An abrupt and marked change in the DNA of an organism compared to that of its parents.
Hypothesis An educated guess that attempts to explain an observation or answer a question.
Theory A hypothesis that has been tested with a significant amount of data.
Scientific law A theory that has been tested by and is consistent with generations of data.
Microorganisms Living creatures that are too small to see with the naked eye.
Abiogenesis The ideo that long ago, very simple life forms spontaneously appeared through chemical reactions.
Prokaryotic cell A cell that has no distinct, membrane-bounded organelles.
Eukaryotic cell A cell with distinct, membrane-bounded organelles.
Species A unit of one or more populations of individuals that can reproduce under normal conditions, produce fertile offspring, and are reproductively isolated from other such units.
Taxonomy The science of classifying organisms.
Binomial nomenclature Naming an organism with its genus and species name.
Created by: hbass228 on 2007-08-28



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