Difference between revisions of "AY Honors/Livestock/Answer Key"

Revision as of 23:17, 31 January 2007

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Mules are almost always sterile. They are a cross between a male donkey and a female horse. The sterility is attributed to the different number of chromosomes the two species have: donkeys have 62 chromosomes, while horses have 64. Their offspring thus have 63 chromosomes which cannot evenly divide.
Mules are generally considered to be more intelligent than either horses or donkeys.
Its short thick head, long ears, thin limbs, small narrow hooves, short mane, absence of chestnuts (horny growths) inside the hocks, and tail hairless at the root, make the mule look like a donkey.
Its height and body, shape of neck and croup, uniformity of coat, and teeth, make it look like a horse.
The mule possesses the sobriety, patience, endurance and sure-footedness of the donkey, and the vigour, strength and courage of the horse.
Their hooves are harder than horses, and they show a natural resistance to disease and insects.
They are capable of striking out with any of their hooves in any direction.

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 ===d. Arabian===
 ===e. Shetland===
 ==3. List four physical characteristics of the mule.==
+# Mules are almost always sterile.  They are a cross between a male donkey and a female horse. The sterility is attributed to the different number of chromosomes the two species have: donkeys have 62 chromosomes, while horses have 64. Their offspring thus have 63 chromosomes which cannot evenly divide.
+# Mules are generally considered to be more intelligent than either horses or donkeys.
+# Its short thick head, long ears, thin limbs, small narrow hooves, short mane, absence of chestnuts (horny growths) inside the hocks, and tail hairless at the root, make the mule look like a donkey.
+# Its height and body, shape of neck and croup, uniformity of coat, and teeth, make it look like a horse.
+# The mule possesses the sobriety, patience, endurance and sure-footedness of the donkey, and the vigour, strength and courage of the horse.
+# Their hooves are harder than horses, and they show a natural resistance to disease and insects.
+# They are capable of striking out with any of their hooves in any direction.
 ==4. Identify a burro from a picture or live. Give its size, color, and usefulness.==
 ==5. Identify from pictures or live animals four kinds of milk cattle and four kinds of beef cattle.==