A dixenous life cycle: the apicomplexan parasitic protist Babesia microti and its two different taxonomic hosts, the deer tick and the white-footed mouse.<unk> , or<unk> us development, characterizes a parasite whose development involves several host species.<unk>  has been used as the basis for splitting genera. When there are two or three hosts, the development cycle is named diheteroxenous or triheteroxenous, respectively. More ambiguously, these terms are sometimes synonymized as dixenous or trixenous. The etymology of the terms<unk>  /<unk> us derives from the two ancient Greek words (), meaning "other, another, different", and (), meaning "foreign". In mycology, the term heteroecious has also been used for parasitic fungi with multiple hosts, and the terms can be used synonymously.
Heteroxeny
Isodisomy
Polyploidy
Germline mosaicism
Bromism
Monosomy
Heteroplasmy
Caudal duplication