The Centers for Disease Control and Prevention employs many ...

[Awilson837]

The Centers for Disease Control and Prevention employs many people who study epidemiology. Which of the following best describes the roles of people at the CDC?
 
  A) identifying new types of infectious disease.
  B) the prevention of infectious disease.
  C) the worldwide distribution of infectious disease.
  D) identifying, tracking the spread of, and preventing infectious disease.

Question 2

The changes in this field, from grasses to shrubs to trees, represent
 
  A) ecological succession.
  B) climax production.
  C) biological evolution of new species.
  D) ecological adaptation.

[diesoon]

Answer to Question 1

D

Answer to Question 2

A

[Awilson837]

Thanks for the timely response, appreciate it

[xiazhe]

Excellent