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What is a protozoa?
a. simple, single celled animals; they are the smallest of all animals; they are the smallest of all animals; most are microscopic in size, and can only be seen under a microscope. They do breathe, move, and reproduce like multi-celled animals.
b. a protozoan that is often found in lakes, ponds, and puddles; constantly moving by beating rows of microscopic hairs, called cilia; feed on bacteria and other microorganisms
a. simple, single celled animals; they are the smallest of all animals; they are the smallest of all animals; most are microscopic in size, and can only be seen under a microscope. They do breathe, move, and reproduce like multi-celled animals.