Answer Key
1. Wild fowl were domesticated as early as 3200 B.C..
2. Nearly 200 breeds and varieties of chickens have been established worldwide.
3. True (although these are not the same type of hens that produce eggs in the U.S. today).
4. Most laying hens in the U.S. are Single-Comb White Leghorns.
5. Columbus is believed to have brought them to the New World on his second trip, in 1493.
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