Which of the following aids the immune system in fighting infections?
a. plasma
b. platelets
c. red blood cells
d. white blood cells

The word means the use of rules to control behavior

Describe specific ways your friend can use frequency, intensity, time, and type to safely apply the overload principles to his workout schedule. provide two ways per training principle. sunday30-minute bike ride monday20 push-ups, 10 squats, and 20-minute jog tuesday30-minute bike ride wednesdayrest thursday20 push-ups, 10 squats, 25 curl-ups, and 20-minute jog friday30-minute bike ride saturdayone-hour walk

Quick! will get brainliest which service do most community health centers provide? child care meal preparation medical research mental health treatment