Assume you're sound sleeping when the doorbell rings. You get to your feet and walk over to the door, which you open and greet your visitor. Consider the several changes that occur in your body as you awaken and respond to the doorbell. How does the three types of muscle tissue (smooth, cardiac, skeletal) helps in responding to the doorbell?

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?