Bacteria
What is the definition of Bacteria?
member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.
What is the definition of Rickettsias?
any of a group of very small bacteria that includes the causative agents of typhus and various other febrile diseases in humans.
What is the definition of viruses?
an infective agent that typically consists of a nucleic acid molecule in a protein coat.
What is the definitiion of fungi?
any of a group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools.
What is the definition of Protizoa?
a phylum or group of phyla that comprises the single-celled microscopic animals.
Is bacteria organelles?
yes, lack of membrane-bound organelles,
Is rickettsias bacteria?
yes, rod-shaped or variably spherical, nonfilterable bacteria
Are viruses parasites?
Yes, they are small, have DNA or RNA genomes, and are obligate intracellular parasites.
Is fungi non vascular?
Yes
Are protozoa Unicellular?
Yes