Light has what range of wavelength?
a. 700 nm to 400 nm
b. 400 nm to 10 nm
c. 0.3 nm to 0.001 nm
d. 10 nm to 0.01 nm

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