Energy flows
a. from high to low
b. from low to high
c. sometimes from high to low and sometimes from low to high
d. nowhere; energy does not flow

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