Day 217 of 365
August 5
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Biology Taste Receptors and Evolution
Our five basic tastes evolved for survival: sweet indicates energy, umami indicates protein, salt indicates minerals, sour warns of spoilage, and bitter warns of poison. Different cultures have different taste preferences, showing how culture interacts with biology.
💡 Did you know?
Cats cannot taste sweetness - they lack the gene for sweet receptors!
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