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All mammals without any exception are characterized by |
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a) |
Viviparity and biconcave red blood cell |
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b) |
Extra abdominal testis and four-chambered heart |
|
c) |
Heterodont teeth and 12 pairs of cranial nerves |
|
d) |
A muscular diaphragm and milk producing glands |
|
All mammals without any exception are characterized by |
|
|
a) |
Viviparity and biconcave red blood cell |
|
b) |
Extra abdominal testis and four-chambered heart |
|
c) |
Heterodont teeth and 12 pairs of cranial nerves |
|
d) |
A muscular diaphragm and milk producing glands |
(c)
In mammals the teeth are heterodont (i.e., consists of incisors, canines, premolar and molars) thecodont (in sockets of jaw bones). The brain has 12 pair of cranial nerves.