Why are cows suited to eating grass?
Show answer & explanation
Answer: Four-stomach system digests plant fiber
Four-stomach system digests plant fiber ✓ — Correct! Cows are ruminants with four-chamber stomachs designed to ferment and digest fibrous plants. Microorganisms in the rumen break down cellulose (indigestible to humans) into nutrients cows can absorb.
Grass contains complete proteins — Wrong. Grass is mostly cellulose fiber, not protein. Cows can eat grass because their four-chamber stomach ferments cellulose into usable nutrients—something humans cannot do.
Grass is cheaper than grain feed — Wrong. Grain is actually cheaper per calorie and fattens cattle faster. Grazing is used because it's sustainable and matches cows' natural digestive design.