Answer:
Opioids are a class of drugs that include the illegal drug heroin, synthetic opioids such as fentanyl, and pain relievers available legally by prescription.
Explanation:
I would say this would be the second one or maybe the last one , hope this helps !
Answer:
Gain weight
Explanation:
Consuming more calories than you burn will result in a weight gain.
B. They have spinal cords