We get energy from the food we eat. The energy in the food first comes from?

The energy the food first comes from is the sun.

Explanation:

It is the process of photosynthesis that locks the Sun's energy into simple carbohydrates like glucose.

The energy content of all food molecules can be traced back to the Sun. It is the process of photosynthesis that locks the Sun's energy into simple carbohydrates like glucose.

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Answer and explanation;

-The belief that organisms originate from a common ancestor was much of the basis that the theory of natural selection was based on. Evidence of animals sharing the same trait, even though for some it appears to have no benefit to them, appears to have been at the root of this belief.

Charles Darwin was the first scientist to publish a coherent theory of Evolution by Natural selection. He wasn't the first to intuitively suspect that species evolved from a common ancestor, but he was the first to publish a coherent theory and bring forth evidence for it.