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).
Unicellular eukaryotes belong to the kingdom Protista, and are often referred to as âprotistsâ or âprotozoans.â The name âprotozoanâ means âfirst animal,â but eukaryotes may display either plant or animal-like characteristics, or a combination of both. Although unicellular, they have a nucleus and membrane-bound organelles, making them functionally complex despite their small size.