Multiple choice Testes are covered in a special sac called scrotal sac. What is the function of it? Spermatogenesis Sex differentiation To provide more space to internal organs To help in the independent functioning of kidneys - Reveal answer Fill a bubble to check yourself A Correct answer Explanation Spermatogenesis is the meiotic division through which the sperms are formed. This occurs in scrotal sac. Its main function is to provide the ideal temperature required for sperm formation.