How does the energy by a athlete during a football game come from the energy of sunlight

"All plants grow through photosynthesis. We eat the plants. Most animals eaten by humans also eat plants. We eat the animals. The energy a human's body uses comes from eating plants, and from animals that eat plants. Since the plants all grew through photosynthesis, and passed on down the food chain into us, we can conclude that the athlete is actually running on energy ultimately derived from photosynthesis. jhk"

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