Assertion: giardia | /r/CapableOf | lack mitochondria
Facets:
Source sentences:
text: One important observation is that Giardia lacks mitochondria and is an obligate anaerobe.
text: Given that Giardia lacks mitochondria and is necessarily anaerobic, its phylogenetic position provides compelling evidence for Cavalier-Smith's hypothesis that the anaerobic eukaryotes preceded the aerobes.