The science of nutrition involves understanding how

The science of nutrition involves understanding how
 
 A. living organisms obtain and use food to support processes required for existence.
  B. nutrients are utilized for energy or regulation of important chemical processes.
  C. nutrient needs change as we age.
  D. All of the above

Q. 2

Morbidity rate is defined as
 
 A. the number of deaths that occur in a population during a certain time period.
  B. the number of infant deaths that occur within a given year.
  C. the number of illnesses or diseases that occur in a population during a certain period of time.
  D. the number of illnesses or diseases that occur in people over 65 years old during a certain period of time.

Q. 3

An experiment in which the participants do not know whether they are receiving the treatment or placebo but the scientists do is called a
 
 A. disorganized study.
  B. double-blind study.
  C. single-blind study.
  D. cause and effect study.

Q. 4

At times, control subjects may experience an apparent effect of the study treatment even though they did not receive any treatment. This phenomenon is called
 
 A. the placebo effect.
  B. a biased outcome.
  C. the control effect.
  D. a blinded outcome.

Q. 5

In an intervention study, the control group consists of
 
 A. study participants who did not receive the study treatment or intervention.
  B. study participants who have been asked to control their food intake.
  C. study participants who received the study treatment or intervention.
  D. study participants who will be included in a follow-up study.

Q. 6

A study performed on a group of people who are not asked to change their behaviors in any way is best described as
 
 A. an intervention study.
  B. an epidemiologic study.
  C. a randomized, controlled study.
  D. a double-blind study.

Q. 7

A relationship where one variable is directly altered by another is called
 
 A. an intervention.
  B. a cause-and-effect relationship.
  C. a correlation.
  D. an epidemiological relationship.

Q. 8

A hypothesis is
 
 A. a complicated equation dividing two variables.
  B. a prediction about the relationship between variables.
  C. a list of variables to be studied.
  D. a series of steps used by scientists to explain observations.