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CHAPTER 1

LIVING THINGS

TermDefinition
Heterotroph an organism that cannot make its own food
organsim a living cell
cell the basic unit of structure and function in an organism
unicellular made of a single cell
homeostasis the maintenance of stable internal conditions
multicellular consisting of many cells
stimulus a change in an organisms surrounding that causes the organisms to react
response an action or change that occurs asa result of a stimulus
development the process of change that occurs during an organisms life to produce a more complex organism
spontaneous generation the mistaken idea that living things arise from nonliving sources
controlled expierement an expeiriment in which all factors are identical except one
autotroph an organism that makes its own food
classification the process of grouping things based on their similarities
taxonomy the scientific study of how living things are made
binomial nomenclature the system for naming organisms in which each organism is given a unique two part scientific name indicating its genus and species
genus a classification grouping that consists of a number of similar closely related species
species a group of similar organisms that can mate with each other and produce offspring that can also mate and produce
evolution the process which species gradually change overtime
prokaryote are organisms whose cells lack a nucleus
nucleus is a dense are in a cell that contains nucleic acid- the chemical instructions that direct the cells activities
eukayote organisms with cells that contain nuclei
Created by: ashleye15
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