Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Facultative parasite

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search


noun, plural: facultative parasites

An organism that lives independent of a host but may occasionally be parasitic under certain conditions.


It is normally saprophytic or lives freely but can become parasitic on certain occasions, such as the flea.

Compare: obligate parasite.
See also: parasite.