Which of the following is not a reason why Clostridium difficile is an increasing concern in healthcare settings?
A) antibiotic misuse and overuse in the population
B) antibiotic resistance
C) emerging superstrains that make a third type of toxin
D) the bacterium can naturally escape drugs and disinfectants by retreating into a resistant spore state
E) additional modes of transmission have occurred in several isolated cases
Answer: E
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Birds are living representatives of which of the following lineages?
a. anapsids b. archosaurs c. lepidosaurs d. synapsids e. crocodilia
An individual plant is often more difficult to recognize than an individual animal
Indicate whether the statement is true or false
Between 60% and 80% of genes are NOT regulated, but are
A. constitutive. B. continuous. C. degenerative. D. repressed.
Which elements make up the majority of the human body?
What will be an ideal response?