23.the answer is incorrect

25.the answer is incorrect

27.the answer is incorrect

37.the answer is incorrect

45.the answer is incorrect.

47.the answer is incorrect

Drugs that kill or inhibit worms are called: A. Antimicrobial agents B. Antihelminth agents C. Antibiotics D. Answer is not given Question 25 Protozoan cells could have any of the following appendages except: A. Flagella o B. Cilia C. Fimbriae D. None of the above Question 27 Substances our immune system produces against antigens are called: A. Autoantigens B. Antimicrobial agents C. Immunoglobulins D. Antibiotics Question 37 One of the following external structures is not common to bacteria and protozoa. A. Flagella B. Cilia C. Cytoplasmic membrane D. Nucleic acids Question 45 Which of the following is not a newly emerging infectious disease? A. Zika virus disease B. TB C. Ebola virus disease D. COVID-19 70 80 10 20 30 40 50 66 9 100 110 120 135 140 150 160 170 180 190 200 210 220 230 240 250 260 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 47 48 49 50 Question 47 2 points Sav Please refer to graphs below. After a child is re-exposed to tetanus vaccine (Fig. b), the concentration of IgG production is maximized: Primary response Secondary og period Day Tulan Day Dey Day 18 IN A. Within 6 - 14 days B. After about 15 days C. Within 3-5 days D. Level remains the same as in primary response