0 the cell that is formed when a female reproductive cell and a male reproductive cell join --
1 the cell that will develop into a baby person or animal and that is created when a male and female gamete (= cell from each parent) unite --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.