Biology: The Dynamics of Life, California Edition

Section 1: The Nature of Disease

The Nature of Disease

1.
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This table shows information about infectious diseases that affect humans. Which pair of diseases is transmitted by droplets?
A)diphtheria and rabies
B)smallpox and tuberculosis
C)HIV/AIDS and influenza
D)hepatitis B and chicken pox
2.
Koch's third postulate states that when a pathogen from the pure culture is placed in a healthy host, it __________.
A)must stop an epidemic
B)must cause the disease
C)must spread the disease to other organisms while not infecting the host
D)must cure the disease
3.
One way to transmit a pathogen to a host is by __________.
A)a phagocyte
B)an antibiotic
C)an epidemic
D)a vector
4.
A parasite such as a tapeworm that produces a disease is __________.
A)a pathogen
B)a microphage
C)a retrovirus
D)a virus
5.
Which of these diseases occurs as a result of poor nutrition?
A)cirrhosis
B)osteoarthritis
C)hemophilia
D)scurvy
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