All mammals (except a few) have __________ cervical vertebra.

The cervical vertebrae in humans is

Assertion: The duck-billed platypus and the spiny anteater, both are egg-laying animals yet they are grouped under mammals. Reason: Both of them have seven cervical vertebrae and 12 pairs of cranial nerves.

Mammals have seven cervical vertebrae except

Go through the following statement (i) Thoracic vertebrae have got foramina transversaia in their transverse processes. (ii) Atlas permits up and down or nodding movement of skull on it. (iii) The body of human vertebra is amphip latyan in nature. (iv) Without exception, all mammals have seven cervical vertrae Which of these are correct?

All vertebrates except Myxine are

In mammals, the number of cervical vertebrae is always

All are taxonomists except

All the following tissues in mammals except one consists of a central 'medullary' region surrounded by a cortical region. Mark the wrong entry