Found on the surface of cells
Answer:
Opioids differentiate from other doctor prescribed medication because opioids are a very addicting drug.
Explanation:
I'm pretty sure it's to boost dental health. fluoride is used to prevent cavities and tooth decay, so i'm assuming its option 3.
Answer: However, during exercise, many other muscles become important to respiration. During inspiration, the external intercostals raise the lower ribs up and out, increasing the lateral and anteroposterior dimensions of the thorax.
I’m not sure but I would think You’re answer is D