Obligate parasite, a parasite that cannot reproduce without exploiting a suitable host
Obligate
photoperiodic plant, a plant that requires sufficiently long or short nights before it initiates flowering, germination or similarly functions
Obligate parasite, a parasite that cannot reproduce without exploiting a suitable host
Obligate
photoperiodic plant, a plant that requires sufficiently long or short nights before it initiates flowering, germination or similarly functions