The answer would be appropriately shaped receptors
<em>Structure and Function of ArthropodsArthropods range in length from about 1 millimeter to 4 meters (about 13 feet). They have a segmented body with a hard exoskeleton. They also have jointed appendages. The body segments are the head, thorax, and abdomen. </em><span><em> In some arthropods, the head and thorax are joined together as a cephalothorax.</em></span>
Explanation:
because the full movie called the amount of each other and can help you to like let's say 11 in it to keep on counting the distances you won't be keeping record of it so that you will know that you did you did a great