Final answer:
Living organisms, including bears, get their energy from the food they consume, which ultimately traces back to photosynthesis where solar energy is captured. Humans and other organisms also rely on food sources that come directly or indirectly from plants and capture solar energy through photosynthesis.
Step-by-step explanation:
All living organisms, including humans, obtain energy from the food they consume. Bears, for example, get their energy from their food, which can range from nuts and berries to fish and other animals. When bears eat, the energy they obtain originally came from the sun, as the plants they consume captured the sun's energy through photosynthesis. Similarly, humans and other organisms rely on food sources that ultimately trace back to photosynthesis for their energy.