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Question
Write two major functions of testis.
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Solution
- They produce male gametes called spermatozoa by the process of spermatogenesis.
- The leydig cells of the seminiferous tubules secrete the male sex hormone called testosterone. Testosterone aids in the development of secondary sex characteristics in males.
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RELATED QUESTIONS
With the help of a neat, labelled diagram describe the human male reproductive system.
Given alongside is a diagram of male reproductive system in humans. Label the parts indicated by numbers 1 to 5, and state their functions.

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| 6. | 31 Pairs | ||
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