Chemical Coordination and Integration
Compared to a bull a bullock is docile because of
higher levels of thyroxin
higher levels of cortisone
lower levels of blood testosterone
lower levels of adrenaline/ noradrenaline in its blood
C.
lower levels of blood testosterone
Testis are degenerated in bullock due to which testosterone level in blood is reduced. This hormone promotes the growth of many body tissues such as muscles.
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