formerly recognized taxonomic group including all flowerless and seedless plants that reproduce by means of spores: ferns, mosses, algae, fungi (noun.plant)
(botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and frui more..(botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and fruit in the second season(noun.plant)
an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host (noun.animal)
the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants) (noun.process)