CONTINUE. All of your body's systems work together maintain homeostasis inside of your body.  When blood calcium becomes too low, calcium-sensing receptors in the parathyroid gland become activated. This results in the release of PTH, which acts to increase blood calcium, e.g. Sign up to receive the new weekly newsletter * Leave this field blank . Homeostasis is a big word that biologists use to indicate that an organism needs to keep conditions inside of itself the same, even though conditions outside are always changing. However, too much light reaching the back of the eye makes seeing harder and can damage the eye. START. This minds-on, hands-on activity begins with analysis and discussion questions that develop student understanding of homeostasis, negative feedback, and positive feedback. Homeostasis is the regulation of conditions in the body such as temperature, water content and carbon dioxide levels. High School Homeostasis. Sign Up. START AGAIN. Lessons By Grade. Cell Homeostasis Virtual Lab What happens to a cell when it is in different environments? A increased carbon … The Human Body and Homeostasis Pre-Test 4 Riding a bicycle requires additional energy from leg muscles. Reading 1: The pupil of the eye responds to changes in light. View all; Newsletter sign-up form. Which of the following conditions may result from this activity, and which response helps restore the body to its no rmal condition? Diabetes is a condition where the body cannot regulate its blood glucose levels. Homeostasis Reading Activity Activity! Human homeostasis 3 Calcium Calcium regulation in the human body. Homeostasis Lesson Plans & Activities. Preschool; Early Elementary (Grades K-2) Late Elementary (Grades 3-5) Middle School; High School ; Preschool. Feedback Mechanisms Structure and Function 1 . Light has to reach the back of the eye to allow us to see.