the science calorie (little c) is a measure of heat energy the food calorie (big C) is a measure of energy that we burn, but it is equal to 1,000 science calories so 1 big C is equal to 1,000 little c's.
Protists are a group made up of protozoa, unicellular algae, and slime molds. We will concentrate on the animal portion of this group: the protozoa (proto = first, zoa = animals).
B. Animal-like Protists 1. protozoa (singular: protozoan) = single-celled, animal-like protists. 2. Protozoa can live in water environments and in soil. 3. They are heterotrophs and can eat by capturing living organisms, feeding on dead things (saprophytes), or as a parasite in another living organism (in a host).