Q Practical Application • Watch the video and answer the following questions: • How does your body know what time it is? - Marco A. Sotomayor (Links to an external site.) 1. What do you call the field of science that studies changes throughout the day? 2. What two proteins help to control our rhythms and what are their respective functions? 3. What are zeitgebers? List a few examples. 4. Opinion: The article talks about the negative effects of screen watching at night. Do you feel this is a legitimate concern? What are your nightly screen time habits? Perform the following tasks: • Step 1: Post your initial response to the discussion topic on the discussion board (250 words). (This is due by Wednesday) • Step 2: Read other students' posts and respond to at least two other students (100 words). (This is due by Saturday) • Step 3: Instructor reviews posts