Eli5: How does a microscopic sperm after fertilization can form so many complex Organs and chemicals, as atoms can’t be created nor destroyed? Also if neurons can’t divide, how did it came into existence in the first place?

Question

Eli5: How does a microscopic sperm after fertilization can form so many complex Organs and chemicals, as atoms can’t be created nor destroyed? Also if neurons can’t divide, how did it came into existence in the first place?

In: Biology

Answer 1

The sperm cell carries information and basically nothing else. The information in the sperm and the egg combine to form the instructions for building an organism, and then the developing organism takes in nutrients which it uses to grow and develop.