panspermia

 [pan-spur-mee-uh]  

pan·sper·mi·a

   [pan-spur-mee-uh]
noun Biology.
the theory that life exists and is distributed throughout the universe in the form of germs or spores that develop in the right environment.
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Also, pan·sper·ma·tism  [pan-spur-muh-tiz-uhm] , pan·sper·my  [pan-spur-mee] .

Origin:
1835–45; < Neo-Latin < Greek panspermía mixture of all seeds. See pan-, -sperm, -ia

Related forms
pan·sper·mic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Panspermia is always a great word to know.
So is mutation. Does it mean:
a sudden departure from the parent type an heritable characteristic caused by a change in a gene or a chromosome
a process that results in differential reproduction among a population so that the inheritable traits of only certain individuals are passed on
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