Multiple choice __________ are facultative parasites. Pinnotheresostreum and Muicobacterium tuberculosis Entamoeba hystolytica and Ascaris lumbicoids Fasciola hepatica and Pinnotheres ostreum Ascaris lumbicoids and Muicobacterium tuberculosis Fasciola hepatica and Entamoeba hystolytica Reveal answer Fill a bubble to check yourself A Correct answer Explanation Organisms which may be parasitic or free living at will, i.e., can live as free living forms in absence of a host are called facultative parasites. Examples: Pinnotheres ostreum and Muicobacterium tuberculosis