Class of organisms, composed of one or more cells containing a membrane-enclosed nucleus and organelles, that constitutes one of the three distinct evolutionary lineages of modern-day organisms; also called eukarya. Includes all organisms except viruses and prokaryotes.
One of the three domains of life. They contain a nucleus and can be microorganisms, like yeast and protozoa, or multicellular organisms like plants and animals. Also called Eukarya.
Organisms making up one of the three branches on the phylogenetic tree of life. Their characteristic feature is that their cells have a defined nucleus containing most of the organism's DNA. See Archaea and Bacteria.
cells that contain a nucleus and internal cellular bodies called organelles.
Higher organisms such as plants, animals, fungi, protozoa and most algae, the cells of which have true nuclei, that is, the genetic material DNA is enclosed in a membranous structure.
Living organisms—comprising protists, plants, fungi, and animals, including humans—made of large cells having a fenced-off nucleus and a cytoplasm containing cytomembranes, cytoskeletal elements, and, most often, mitochondria, peroxisomes, and, in algae and plants, chloroplasts. ~ See Also: Chloroplast, Cytomembrane system, Cytoskeleton, Mitochondrion, Nucleus, Peroxisome, Prokaryotes.
Complex organisms, often multicellular, whose cells contain nuclei.
organisms — eg animals, plants, fungi, whose cells have a membrane-bound nucleus and organelles.
Organisms that maintain their genome within a defined nucleus. (Not used in any formal taxonomic system, but now may be used to refer to members of the domain Eucarya.)
Free-living microorganisms larger than prokaryotes that have nuclei and other complex intracellular structures.
advanced cell type with a nuclear membrane surrounding genetic material and numerous membrane-bound organelles dispersed in a complex cellular structure
all living things whose cells have nuclei (most living things).
organisms whose cells are compartmentalized by internal cellular membranes to produce a nucleus and organelles.
Organisms that have nucleated cells, including yeasts and all higher organisms.
One of the two major groups of organisms on Earth (the other being Prokaryotes). Characterised by the possession of a cell nucleus and other membrane-bounded cell organelles.
Class of organisms, including all plants, animals, fungi, yeast, protozoa, and most algae, that are composed of one or more cells containing a membrane-enclosed nucleus and organelles. Opp. Prokaryotes.