1) A very small particle that is not alive but is programmed to reproduce itself once it comes into contact with suitable living host cell a) virus b) symptom c) epidemic d) vaccine 2) the body's response to a disease, like a fever, vomiting or joint pain a) symptom b) disease c) vaccine d) epidemic 3) An organism invisible to the naked eye, especially one that causes disease a) vaccine  b) microbe c) symptom d) parasite 4) a type of prokaryotic ( no nucleus) unicellular ( one-celled) microorganism found everywhere a) bacteria b) vaccine c) parasite d) epidemic 5) a disease that is transmitted from one individual to another by direct or indirect contact a) contagion b) vaccine c) parasite d) bacteria 6) any organism that has a harmful relationship with a host or another organism a) bacteria b) parasite c) contagion d) epidemic 7) refers to a disease that passes easily from person to person a) vaccine b) parasite c) communicable d) epidemic 8) a condition where an organism experiences impaired function a) disease b) vaccine c) contagion d) epidemic 9) Anything living thing capable of causing infectious diseases. a) pathogen b) contagion c) parasite d) vaccine 10) A widespread infectious disease that affects a single population,community, or region. a) pandemic b) epidemic c) vaccine d) communicable 11) A widespread infectious disease that affects a whole country, multiple countries or the whole world a) epiddemic b) pandemic c) vaccine d) pathogen 12) A solution that contains weakened virus particles, which gets injected into the body a) contagion b) pathogen c) epidemic d) vaccine 13) A chemical that kills bacteria or slows their growth without harming body cells. a) pathogen b) contagion c) antibiotic d) vaccine 14) a disease that is not transmitted from one host to another a) communicable b) non-communicable c) vaccine d) pathogen 15) any agent (person or animal or microorganism) that carries and transmits a disease a) pathogen b) contagion c) vector d) vaccine 16) the ability of bacteria to withstand the effects of an antibiotic a) antibiotic resistance b) vaccine c) pathogen d) contagion 17) chemical substance that has a negative effect of the body by inhibiting normal body function a) pathogen b) carrier c) contagion d) toxin 18) a person who carries and transmits characteristics but does not exhibit them a) pathogen b) contagion c) carrier d) toxin

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