16. What is the unit of measurement for energy in ecosystems? a. Kcal b. Watts c. Volts d. Liters

## Step 1<br />In the context of ecosystems, energy is typically measured in kilocalories (Kcal). This is because kilocalories are a unit of energy that is commonly used in biology to measure the amount of energy that organisms can obtain from food or the amount of energy that is transferred from one trophic level to another in a food chain.<br /><br />## Step 2<br />Watts, on the other hand, are a unit of power, not energy. Power is the rate at which energy is transferred or converted, and it is not a measure of energy itself.<br /><br />## Step 3<br />Volts are a unit of electrical potential difference, not energy. They measure the potential difference between two points in an electrical circuit, not the amount of energy.<br /><br />## Step 4<br />Liters are a unit of volume, not energy. They measure the amount of space that a substance or object occupies, not the amount of energy.