2 In the trachea, there is a layer of epithelial cells called the respiratory mucosa
In the respiratory mucosa, there are specialized cells that produce mucus called goblet cells.
The function of the mucus is to keep the trachea moist.
What is this an example of?
Ο Α.
Cells working together to maintain homeostasis.
ОВ.
Cells working together to produce energy for the body.
OC.
Organs working together to maintain homeostasis.

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.