An investigator wanted to determine the effect of egg consumption ...

[j.rubin]

An investigator wanted to determine the effect of egg consumption on cholesterol levels. She asked a group of participants to consume three eggs per day for three weeks and another group of participants to not include eggs in their diet. She tested the cholesterol levels of both the groups before and after the three weeks. This type of study is called a(n) _____.
 A) clinical trial study
  B) epidemiologic study
  C) cohort study
  D) intervention study

Question 2

An essential nutrient is one that:
 A) is synthesized by the body in large amounts.
  B) must be obtained from the diet to sustain life.
  C) cannot be synthesized by the body in sufficient amounts.
  D) is not required by the body to sustain life.

[Cheesycrackers]

Answer to Question 1

D

Answer to Question 2

B

[j.rubin]

Gracias!

[komodo7]

Excellent