Chapter 15 Resource: Support, Movement, and Responses

Name Date ClassLaboratory Activity 1 (continued)Questions and Conclusions1. Does Part A show that blinking is voluntary or involuntary? Explain.2. Does Part A show that blinking is protective? Explain.Hands-On Activities3. Does Part B (no blinking) show voluntary or involuntary muscle action? Explain.4. It is important for people’s eyes to remain moist. Describe how your eyes felt after notblinking. Do you think that blinking is helpful and protective? Explain.Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.5. How might you explain the fact that your average time and that of your partner in Part B arenot the same?6. What does the activity with the cotton ball and plastic help prove? Explain.Support, Movement, and Responses 11