The calorie (usually expressed in kilocalories)
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There isn't a "herbal energy" in the strict sense of 'energy' but it may be a measure of the energy you'd obtain from a given amount of a herbal tea or similar as a food.
Energy is not required for passive transport.
Transformation of energy
Solar radiation
solar
The amount of oxygen that's consumed when you burn your food is an indirect measure of the amount of energy that's released from the food. Bomb calorimeters are sometimes used to measure the energy content in food.
animals
Food energy is usually measured in calories.
the measure of energy from food
calories
a measure of energy from food
Calories are the standard unit.
Kilo joules are used to measure the amount of energy stored in food.
Calorie is the unit used to express chemical energy in food.
A calorie
the temprature change tells t=you how much energy is being greated