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 Organisms. A unicellular organism is composed of one cell. Itâs the opposite of a multicellular organism which has two or more cells.The main groups of unicellular life are bacteria, archaea (both prokaryotes), and the Eukaryota (eukaryotes).(1). Size. Some unicellular organisms cannot be seen with the naked eye.tâs the opposite of a multicellular organism which has two or more cells.The main groups of unicellular life are bacteria, archaea (both prokaryotes), and the Eukaryota (eukaryotes). (1). Size. Some unicellular organisms cannot be seen with the naked eye.