d. labor.
<span>Hope this helps. c:</span>
Because they know when they are full and satisfied. They dont have Control over what they eat. But how much they eat.
Because its air we cant see it thats why its clear because it would be scary if we were able to see air! :)
Interdisciplinary communication is basically just when multiple academic subjects/field of studies get combined for a lesson.
Mucous membrane exposure
Hope this helps!