Please answer all questions

1		Microscopic organisms are widely distributed: they are virtually everywhere.
			A)	True
			B)	False
2		Microbes contribute to our well-being by helping with our digestion, providing the source of many foods, and by producing antibiotics.
			A)	True
			B)	False
3		Normal bacteria that live on or in organs are called saprophytes.
			A)	True
			B)	False
4		Our normal microflora can keep other infections from occurring.
			A)	True
			B)	False
5		Virulence factors help pathogens overcome the defenses of a host and cause disease.
			A)	True
			B)	False
6		A localized infection is always more serious than a systemic infection.
			A)	True
			B)	False
7		Pathogens that are highly transmissible by direct means are invasive.
			A)	True
			B)	False
8		To get an infection, you always have to come in direct contact with someone else who has the infection.
			A)	True
			B)	False
9		Viruses are considered to be living because they are composed of a very tiny cell.
			A)	True
			B)	False
10		Some viruses have an envelop made from the host cell's plasma membrane, therefore disguising the virus and allowing infection.
			A)	True
			B)	False
11		A virus takes over a cell's DNA and protein making mechanism to make more viruses.
			A)	True
			B)	False
12		Flu vaccinations are effective because they provide you with the antigens to make antibodies against the anticipated flu virus.
			A)	True
			B)	False
13		Because measles is the most contagious human disease, almost all children in unvaccinated populations wil contract the disease.
			A)	True
			B)	False
14		Over half of all colds are caused by rubella viruses.
			A)	True
			B)	False
15		A vaccine against the common cold should be easy to produce since there are only two types of cold viruses.
			A)	True
			B)	False
16		Antibacterial hand creams are very effective against viruses.
			A)	True
			B)	False
17		Prions are transmitted by ingestion of brain and nerve tissue from an infected organism.
			A)	True
			B)	False
18		Bacteria have no membrane-bound organelles or nucleus and are called eukaryotes.
			A)	True
			B)	False
19		Some staphylococcus aureus bacteria are referred to as MRSA which means they are resistant to all penicillin-like antibiotics.
			A)	True
			B)	False
20		Most people are vaccinated against TB, so there is very little risk of death.
			A)	True
			B)	False
21		Boiling will kill bacteria but not the toxin that they produce that causes food poisoning.
			A)	True
			B)	False
22		Mycoses are diseases caused by worms.
			A)	True
			B)	False
23		Histoplasma capsulatum, a soil organism found in bird droppings, affects the lungs and is found mainly in southeastern U.S.
			A)	True
			B)	False
24		Malaria is the most widespread and dangerous disease caused by a fungus.
			A)	True
			B)	False
25		Pregnant women should avoid fecal-oral transmission from cats because of toxoplasmosis that is harmful to the developing fetus.
			A)	True
			B)	False
26		Schistosomiasis is caused by a flatworm that causes swollen belly in children usually living in underdeveloped countries.
			A)	True
			B)	False