Researchers exposed some participants to the virus that causes the common cold and exposed other participants to an inert saline solution. They found that the more stress participants reported, the more likely they were to contract colds.
Results of this study suggest that
a. stress can negatively affect our immune systems.
b. physical illness can make us more susceptible to stress.
c. exposure to viruses can be a source of stress on the immune system.
d. interpretations of stress are more important than objective stress.
Question 2
According to stress research pioneer Lazarus (1966, 2000), it is ________ and not ________ stress that causes problems for people.
a. physical; emotional
b. negative; positive
c. subjective; objective
d. social; personal
A plant infected with tobacco mosaic virus
Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision
Common pathogens and some infections
Beta-lactam antibiotics: The beta-lactam ring is common to many different classes of antibiotics.
A culex tarsalis mosquito, a common vector of the spread of West Nile virus.
Common Prefixes Cont.