

Question regarding gem biology AND science.
We are aware that gems don't possess a physical nervous system like normal humans.
As stated by the gems themselves, Their bodies are made of pure light and able to change their shape and form.
Steven is the first and only known gem/human hybrid as he was born from the genetic makeup of Rose Quartz and Greg Universe.
But that brings me to my biggest question. How.
If gems don't need to eat, sleep, or dispense waste (like poop or urine), then how is it possible for a gem, a diamond non the less, to be able to possess the biological component in order to carry a child and brith said child?
I know it's a cartoon and not meant to be taken seriously. But as someone who has autism and ADHD, I have to question biology, and how the science works for gems.