Spermatogonia in the seminiferous tubules are located spermatogonia in the seminiferous tubules are located closest to the lumen of the tubule spermatogonia are not found in the seminiferous tubules closest to the outer edge of the tubule about half way between outer edge and lumen of the tubule

The answer is ‘closest to the lumen of the tubule’. Spermatogonia are undifferentiated male germ cell that undergoes spermatogenesis to form mature spermatozoa in the seminiferous tubules of the testis. In the course of spermatogenesis, the germ cells move towards the lumen as they mature.

1. a tropical dry forest carries out more rapid nutrient cycling

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