Which of the following is NOT an effective way to combat this infectious agent?
A) Be vaccinated.
B) Have an active immune system.
C) Produce more white blood cells.
D) Take an antibiotic
Ans: D) Take an antibiotic
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Substances that induce an immune response are known as
A) immunogens. B) antigens. C) immunoglobins. D) antigen-presenting cells.
Which portion of the plasma membrane carries out most of the membrane’s specific functions?
a. proteins b. lipids c. carbohydrates d. glycolipids e. phospholipids
Why was it initially expected that cloned animals might have a shorter life span?
a) The egg cell had elevated telomerase. b) The chromosomes of the donor nuclei had lengthened telomeres. c) The donor cell had elevated telomerase. d) The chromosomes of the donor nuclei had shortened telomeres.
Herd immunity fails if at least what percentage of a population is unvaccinated?
A) 1% B) 5% C) 10% D) 20%