We distinguish between "sex" and "gender".
Your sex is what you're born as, the physical body, you're either a man or a woman.
Your gender is something that you construct. That means, you may feel like either a man or a woman.
In some cases your physical sex and your constructed gender don't match, and you have people who feel as if they had been born in the wrong body.
Answer: Hebbian learning
Explanation: This is a type of learning which involves strengthening connections between neurons which work together. The repeated exposure to a particular stimulus can strengthen connections within a distinctive subset of cortical neurons, and this subset can provide a reliable basis for identifying the stimulus that is activating them.
It has been proven that even when an individual encounters an incomplete version of a familiar stimulus with only some of the subset of neurons representing that familiar stimulus activated at first, the connections already established through repeated coactivity will produce results that complete the familiar pattern.
They allow archaeologist to picture what life could of been like
5 positive interactions for every 1 negative interaction