13. which of the following leads to increased genetic diversity?
a) sexual reproduction
b) asexual reproduction
c) conjugation
d) all of the above
e) both (a) and (c)

Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells

Which direction does the energy flow in this energy pyramid ?

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