What is meant by virus load ? draw a graph of a typical load profile for an hiv- infected individual

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

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

Spirochetes have a twisting and flexing locomotion due to appendages called