The human embryo is destined to become female by default unless several chemicals swing into action.
The word sex comes from the Latin secare which means to separate or divide.
What most people do not know or appreciate is how the body decides whether to make male or female parts.
The kidney may not be as sophisticated as the brain or the liver, but it definitely has a lot of roles to play.
By using Tim’s case, we will see what would have happened to our earliest ancestors without any one of them.
Without any one of the necessary systems being in place, the whole would fail and calcium control would be lost.
Without Vitamin D, our earliest ancestors wouldn’t have been able to absorb enough calcium to build up their bones and survive within the laws of nature.
It’s important to understand how the body works, not just how it looks.
Control is the key to life. But how does the body achieve it?
Conventional scientific wisdom says that warm-blooded animals evolved from cold-blooded ones.