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chapter 1 lesson 1

what is life

TermDefinition
cell the basic unit of structure in living things
organism a living thing
unicellular made of a single cell
multicellular consisting of many cells
metabolism the combination of chemicalreaction through which
stimulus any change or signal in the environment that can make an organism react in some way.
response an action or change in behavior that occurs as a result of a stimulus.
development the process of change that occurs during an organism's life to produce a more complex organism.
asexual reproduction a reproductive process that involves only one parent and produces offspring that are genetically identical to the parent.
sexual reproduction a process that involves two parents that combine their genetic material to produce another organism.
spontaneous generation The mistaken idea that living things came out of non living things
controlled experiment An experiment in witch only one variable is manipulated at a time
autotroph An organism that is able to capture energy from sunlight or chemicals and use it to produce its own food
heterotroph An organism that can not make its own food and gets food by consuming other living things
homeostasis The conditioning which an organism’s internal environment is kept stable in spite of changes in the external environment
Created by: 0003176stu
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