Answer :
Final answer:
Complete proteins are found in both animal and select plant-based foods like soy and quinoa, while incomplete proteins are commonly present in plant foods.
Explanation:
Complete proteins contain all nine essential amino acids and are found in animal foods such as milk, cheese, eggs, fish, and meat, as well as in plant foods like soy and quinoa. On the other hand, incomplete proteins lack one or more essential amino acids, commonly found in most plant-based foods.
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