(C) . In most mammals,including rabbits,the testes are located outside the abdominal cavity in a pouch called the scrotal sac. This is because spermat

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(C) . In most mammals,including rabbits,the testes are located outside the abdominal cavity in a pouch called the scrotal sac. This is because spermatogenesis requires a temperature $2-2.5^{\circ}C$ lower than the normal internal body temperature for its successful completion.