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chapter 1 Lesson 1
What is life?
Term | Definition |
---|---|
cell | the basic unit of structure and function in living things |
organisms | a living thing |
stimulus | a change or signal in the environment that can make an organism react in a way |
sexual reproduction | a reproductive process that involves two parents that combines their genetic material |
controlled Experiment | an experiment where one variable is controlled at a time |
response | action in behavior in result of a stimulus |
unicellular | created of a single cell |
development | the process of change that occurs during an organism to produce a complex organism |
spontaneous generation | a mistake idea that living things come from nonliving sources |
autotroph | an organism that is able to capture sunlight or chemicals to make its own food |
multicellular | having many cells |
hetrotroph | an organism that cant make its own food but gets food by consuming other living things |
metabolism | combination of chemical reactions when an organism builds up or breaks in a way |
homeostasis | a condition where an organisms inside environment is kept stable in spite of changes to the outside |
controlled Experimeant | an experiment where one variable is controlled at a time |