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Chapter 1

living things

organism a living thing
cell the basic unit of structure and function of life
unicellular made of a single cell
multicellular consisting of many cells
stimulus A change in the organism surroundings causing it to react
responce A action or change in behavior that occurs as a result of a stimulus
development the process of change in a organisms life
spontaneous generation the mistaken idea of living things arising from nonliving things
controlled experiment an experiment in which all factors are identical accept for one
autotroph an organism that can produce its own food
heterotroph an organism that cannot make it own food
homeostasis the maintenance of stable internal conditions
Classification the process of grouping things based on their similarities
taxonomy The scientific study of how living things are classified
binomial nomenclature naming system
genus a classification grouping that consist of a number of similar closely related species
species a group of similar organisms that can mate with each other
Evolution The process by which species gradually change over time
Prokaryote An organism whose cell lack of nucleus
Eukaryotes An organism whose cell contain nuclei
Nucleus The dense area in eukaryotic cell that contains nucleic acids the chemical instructions that direct the cells activities
Created by: jthomason