Assertion: toxin | /r/HasProperty | produced within living cells
Facets:
Source sentences:
text: A toxin is a poisonous substance produced within living cells or organisms.
text: A toxin is a poisonous substance produced by living cells or organisms that is active at very low concentrations.
text: A toxin is a poisonous substance produced within living cells or organisms; synthetic toxicants created by artificial processes are thus excluded.