Convection : Warm air rises and cold air sinks, you have a cycle there :D You can experience it on the beach shore. Since water has a high heat capacity ( it takes longer to heat up ) and the sand get hot quickly, the air on the shore gets warm and rises. When the air reaches to certain elevation (or meet the temperature of the beach), it gets cooler and sinks, cold air from the beach blown to the shore.
You prepare a slide with a thin slice of onion root tip. You see the following view in a light microscope. Identify the stage of mitosis for each of the outlined cell.
