Final answer:
Polar bears generate thermal energy from stored fat to increase their temperature, bats use mechanical energy for echolocation, fireflies emit radiant energy in the form of light to attract mates, and eels produce electrical energy for defense.
Step-by-step explanation:
Each organism utilizes various types of energy to perform specific functions. Here's how each function matches with the type of energy:
- A. Polar bear increases its temperature by breaking down stored fat - Thermal energy
- B. Bat locates prey by emitting and receiving sounds - Mechanical energy
- C. Firefly produces a green glow from its abdomen to attract mates - Radiant energy
- D. Eel releases a current to defend itself - Electrical energy
For a polar bear, the breakdown of stored fat increases its body temperature, which is an example of converting chemical energy from food into thermal energy. A bat uses mechanical energy when it emits and receives sounds for echolocation. A firefly's green glow is a result of a biochemical reaction that emits light, which is radiant energy. The eel defends itself by generating electrical energy within its body, which creates a current to deter predators or competitors.