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Question

The difference in size of neck of rabbit and giraffe is due to

A
Size of cervical vertebrae
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B
Number of cervical vertebrae
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C
Long muscles
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D
None of the above
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Solution

The correct option is A Number of cervical vertebrae
The giraffe,s extremely long neck can measure up to 2 m (6 ft 7 in) in length giving the animal its height. The long neck results from a disproportionate lengthening of the cervical vertebrae not from the addition or number of vertebrae. Each cervical vertebra is measured 28 cm (11 in) long and makes up nearly 52–54% of the length of the giraffe's vertebral column.

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