Which of the following is/are the most specific internal defense against disease?

nk cells
phagocytes
t cells
inflammation

Outdoor and indoor equipment must include a. only toys that are soft. b. equipment that is age-appropriate and developmentally appropriate. c. areas that allow children to play together. d. high toys that allow children to practice gross motor skills.

Victoria enjoys laughing with her friends as they walk around the track after school which best describes her heart rate during this activity

How can lung cancer best be prevented? a. by getting regular screeningsc) b. by avoiding cigarette smokec. by monitoring cholesterol levelsd. by avoiding nown allergensherrwww