a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease.
a member of a large group of unicellular microorganisms with specialized cell walls, possess metabolic pathways that are similar to eukaryotes, lack organelles, and an organized nucleus.
A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.
Plants are mainly multicellular, predominantly photosynthetic eukaryotes.
Animals are multicellular eukaryotic organisms. Animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development.