2026 COMPLETE QUESTIONS AND
SOLUTIONS
●● pathogen. Answer: an organism that causes disease
●● toxin. Answer: poisonous substance produced by some pathogens
●● bacteria. Answer: one-celled prokaryotes, some of which can cause
disease. They can be treated with antibiotics
●● antibiotic. Answer: drug/chemical that kills or slows the growth of
bacteria
●● antibiotic resistance. Answer: the ability of bacteria to resist the
effects of an antibiotic
●● protozoan. Answer: one-celled eukaryotic organisms
●● vaccine. Answer: a substance prepared from killed or weakened
pathogens and introduced into a body to produce immunity