Human Health Answers

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1
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Candace is wanting to be sure that she is doing what she can to prevent the spread of disease. Which of the following should she be sure to do?

A
Take medicine to destroy the germs.
B
Avoid contact with other people's bodily fluids.
C
Wear warm clothes.
D
Eat healthful foods such as fruits and vegetables.
2
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Roman says that the risk of osteoporosis can be reduced by making certain lifestyle choices. Which lifestyle choice could Roman be referring to?

A
increasing social interaction opportunities
B
lowering salt intake
C
managing stressful situations
D
increasing calcium intake
3

The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healthy mice. Those mice started to show signs of a heightened immune response. According to Koch’s postulates what is the next step in determine whether the bacteria is pathogenic?

A
Classify the bacteria as a noncommunicable disease.
B
Classify the bacteria as a communicable disease.
C
Reisolate it, and determine if it is the original unknown bacteria.
D
Treat the original 20 individuals with antibiotics.
4

Which factors most influence whether a person will develop Alzheimer's disease?

A
the person's environment and social interaction
B
the person's genetics and age
C
the person's gender and salt intake
D
the person's salt intake and stress level
5

Heart disease is a noncommunicable disease because

A
it can be spread.
B
it does not spread from person to person.
C
it is contagious.
D
it only affects individuals, not communities.
6

An example of a communicable disease is

A
cancer.
B
chronic respiratory disease.
C
diabetes.
D
giardiasis.
7

Which statement best describes the germ theory of disease?

A
Diseases are caused by bad-smelling poisonous vapors that contain decaying matter.
B
Diseases are created or generated spontaneously within the body.
C
Diseases can be isolated and grown in cultures.
D
Diseases are caused by the presence and action of specific microorganisms.
8

How did Francesco Redi disprove the idea of spontaneous generation?

A
He showed that flies were not produced by meat.
B
He showed that microorganisms are present in air.
C
He showed that microorganisms cause disease.
D
He showed that flies spread disease.
9

Osteoporosis is more prevalent among women than men because women generally

A
have more bones in their bodies than men have.
B
take in more calcium than men take in.
C
have lower bone mass than men have.
D
exercise more than men do.
10

Tobias has mononucleosis. Mononucleosis is a disease that tires and weakens the body. It is caused by a contagious virus that is transferred through direct contact. Which would be the best explanation of how Tobias contracted mononucleosis?

A
Tobias never exercised and was more susceptible to the virus.
B
As a male, Tobias has a better chance of getting mononucleosis.
C
Tobias inherited the gene from his parents.
D
Tobias drank from a water fountain that was contaminated.

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Human Health Answers — TX-Biology B-CR