In a way, mules are themselves a genetic abnormality. Horses have 64 chromosomes (32 pairs); donkeys have 62 (31 pairs). Mules and hinnies have ____________________ chromosomes.
Fill in the blank(s) with the appropriate word(s).
63
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____________________ are round seals with a circular cross section.
Fill in the blank(s) with the appropriate word(s).
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The color pattern of a striped skunk is _____
a. solid black b. solid white c. black with two parallel white stripes d. all the above
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The _____ give the joints flexibility and serve as shock absorbers to protect the end of the bones
a. Synovial fluids c. Ligaments b. Vertebrae d. Tendons
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Pressure lower than atmospheric pressure is called ____________________.
Fill in the blank(s) with the appropriate word(s).
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