Which of the following is NOT one of the three major types of skin cancer?

Nutrients are absorbed into tiny capillaries and lymph vessels located in the walls of the small intestine and transmitted to the body cells via the ________ system

a. respiratory b. digestive c. circulatory d. nervous

A drug's ability to cause the expected response is its:

a. concentration. c. viability. b. affinity. d. efficacy.