Doreen Virtue (born April 29, 1958) is an American author and a motivational speaker. She is the founder of Angel Therapy. Virtue has written over 50 books including oracle card oracle decks on the subject of angels and other spiritual topics.
Exogenous infection is caused by organisms not normally present in the body but which have gained entrance from the environment.. A small fragment of bacteria causes disease in humans,and many species colonize in the human body to create an ecosystem know as bacterial flora.
var. , variant, strain, form - (biology) a group of organisms within a species that differ in trivial ways from similar groups; a new strain of microorganisms. type - (biology) the taxonomic group whose characteristics are used to define the next higher taxon.group Pteridospermae, group Pteridospermaphyta, Pteridospermae, Pteridospermaphyta-used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales.ar. , variant, strain, form - (biology) a group of organisms within a species that differ in trivial ways from similar groups; a new strain of microorganisms. type - (biology) the taxonomic group whose characteristics are used to define the next higher taxon.