Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can't push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.
Family history, environmental changes, poverty, Second hand smoke and neglect
I think it is increased risk of acquiring HIV,and increased risk of acquiring an STD
Answer:
d. prescription medication
Explanation:
Prescription medication is an item that is required to be approved by the FDA. The prescription medication is a drug that is approved by the FDA (Food and drugs administration) that officially requires a medical prescription to be dispensed. The reason why prescription medication is needed to be approved by the FDA is to determine whether the drugs are safe to be taken or if the medicines are effective.
