1. In a normal axon, the action potential moves in one direction, from cell body to axon terminal, without stopping or reversing course. Based on the function of the Na+
channel:
a. Why does an action potential move in an all-or-nothing fashion down the length
of an axon without stopping?
b. What mechanism of the Na+ channel prevents the action potential from
reversing course?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

Glucose is broken down in different ways, both in the presence and in the absence of oxygen. using the table for reference, what major products are formed in each reaction set?

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials