Which of the following factors is most important in
determining the type of biomes found in a particular
region?
a. soil type
b. light intensity
c. temperature
d. type of animals in the region
e. wind patterns
Answer: c
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Which of the following is a way to prevent attenuation and maintain virulence in a bacterium?
A) laboratory subculture B) animal passage C) polymerase chain reaction (PCR) D) antibiotic therapy
Immunization against endemic diseases is NOT necessary when traveling outside of one's home country or region
Indicate whether the statement is true or false.
___ develop into phagocytic ___ that migrate
through tissues digesting pathogens etc.
a. Macrophages...neutrophils b. Neutrophils...macrophages c. Dendritic cells...macrophages d. Monocytes...macrophages e. Monocytes...dendritic cells
Restriction enzymes were originally isolated from bacteria, which used them to protect themselves from viruses. How might a restriction enzyme defeat a virus?
What will be an ideal response?