Homeostasis, it is the process of organisms regulating their internal conditions. <span />
A model organisms is a species that has been widely studied, usually because it is easy to maintain and breed in a laboratory setting and has particular experimental advantages. model organisms are non-human species that are used in the laboratory to help scientists understand biological processes.
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First part is explaining second part is explaining the uses)
If you are friend smoke you are increased more likely to start smoking then a child of non smoker
C "fatty acids" is your answer
