Im postive its all the above
Answer:
5...i think
Explanation:
around the age of 5 your brain starts to develop the lost because your able to do more then when you were 3 or 4
The best way to describe a human sperm cell is a tad pole (Baby frog). Like the sperm cell the tad pole has a head, body and a tail. Though tad poles are finished products, the sperm cell needs to combine with the egg cell for it to be fertilized.