Oxygen-rich blood travels through what type of blood vessels?

Antibiotics are given when an std is caused by a virus. true or false

Which of these contraceptive methods on its own is least likely to prevent pregnancy ? a. spermicides b. condoms c. surgical sterilization d. oral contraceptives

What type of media messages might be found at sporting events? how might they influence your health? justify your response using two or more complete sentences.