Wavy hair is a very easy example that this is false. It's a merge between straight and curly hair. Our traits tend to mix and blend together, it's not so simple. Everybody isn't just tall or short, one or the other. Everybody is a different height because it's a mid between your parents.
SOS:
The answer is <em><u>gametes!</u></em>
<em>Hope this helps!</em>
I would say the alveoli. They are tiny air pockets in the lungs: this is where the diffusion of oxygen and carbon dioxide occurs.
Hope this helps! x
