The system protects internal organs from harmful bacteria, sunlight, and injury.

Which of these should be re portable health diseases to protect public health? a- obesity b- measles c- diabetes d-lung cancer

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

Which of the following processes does the body not use protein to perform? a. repairing muscles b. producing hormones c. making hemoglobin d. creating amino acids