What is Vincent Van Gogh's nationality?

Which descriptions offer examples of support services workers? check all that apply.sebastian makes sure patients can communicate with medical workers, understand information, and make decisions. miriam schedules appointments for a medical clinic. lena plans a food service program to improve patient nutrition in a healthcare facility. benito cleans and examines a patient’s teeth and gums. jason prepares and cooks food for patients in a hospital. wei examines an athlete who hurt his leg during a competition.

Which of these is a consistent periodic pulse separated into equivalent intervals of time?

Ineed someone to describe what they mean in the instructions !