This document appears to be from a lesson on the endocrine system. It includes directions and questions for an activity where students locate different glands on diagrams of the human body. The document tests students' knowledge of the key glands like the pituitary, thyroid, pancreas and reproductive organs. It also discusses how the endocrine and nervous systems work together to maintain homeostasis. Students are assigned to write a short essay about how dysfunction of a selected endocrine gland could affect their life.