Assertion: toxin | /r/HasProperty | produced via biological function
Facets:
value: in nature
type: LOCATION
Source sentences:
text: Toxins are poisons produced via some biological function in nature, and venoms are usually defined as biologic toxins that are injected by a bite or sting to cause their effect, while other poisons are generally defined as substances which are absorbed through epithelial linings such as the skin or gut.