Answer: A. is a measure of energy
Explanation:
Heat is one of the easiest forms of energy that man can detect in your environment because we have the sensation of cold, hot, sweat, drink liquids when we feel hot, see the engine of a car heat up, take a bath of water heated by an electric shower or a boiler, etc.
Heat transfer occurs until the moment bodies reach the same temperature (thermal equilibrium). Heat is the energy transferred between a system and its surroundings because of the differences in temperatures.
in controls the body to function to balance and it communicates with the other sensory organs
D. sum of all chemical reactions in an organism
food vacuole or granule:- used to contain food for digestion .
contractile vacuole :- used to remove excess water.
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