Which of the following is a value of biodiversity?
a. climate change
b. healthy ecosystems
c. pollution
d. invasive species
is it b?

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