If the annual consumption of petroleum in the United States is about 20 barrels per capita, the total annual consumption of petroleum in the United States is closest to:

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow