Answer:
Sertoli cells
Explanation:
The Sertoli cells nourish and protect the developing sperm cells, and spermatogenesis—the developmental pathway from germ cell to mature sperm—occurs in the recesses of the Sertoli cells (Figure 19.17)
I’m guessing San francisco was cooler and st. louis was warmer?
I can’t really see the numbers but it seems to be 30ml