There are certain conditions that must be met for infection to occur. Three of the following assumptions are true for infection. Identify the false assumption.
A) The microorganisms must be opportunistic.
B) The microorganisms must penetrate the host defenses.
C) The microorganisms must enter the tissues.
D) The microorganisms must multiply.
Answer: A) The microorganisms must be opportunistic.
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________ consume organic molecules to live.
A. Photoautotrophs B. Autotrophs C. Hemitrophs D. Heterotrophs E. Plants
Match the following items with the correct phrases.
_______1. Infections that patients develop while hospitalized or within 14 days of hospital discharge are considered to be ____________________. _______2. Infections that patients have on hospital admission are considered to be ____________________. _______3. ____________________ may result if healthcare workers fail to wash their hands after handling laboratory animals or pets being used for pet therapy. _______4. Infections that are actually caused by healthcare workers are specifically known as ____________________. _______5. Each year, in the United States, approximately 2 million hospitalized patients develop ____________________. a. arthropodborne infections b. community-acquired infections c. iatrogenic infections d. nosocomial infections e. nosocomial zoonoses
The west coast of Africa and South America in the tropics do not support corals. Which of the following would likely prevent coral growth in these areas?
a. cool northern flowing currents b. cool upwelling water c. depth of 25 meters d. both a and b
A human nerve cell that has an abnormal shape most likely has a defective
A. cell wall. B. cytoskeleton. C. nucleus. D. ribosome.