In this experiment you observed the polarisation changing properties of beetles. an obvious evolutionary motivation for this is secret signalling, but thits requires the same species to possess polarisation sensitive vision. has this beetle been shown to have such vision, and if so, how was this shown? what are some non-beetle examples of polarisation sensitive animal vision and what are the evolutionary benefits of this aside from secret signalling? there any animals that can detect animal more useful than ability to affect or discriminate linear polarisation? what is haidinger's brush? t affect polarisation?

Is there a picture to go along with this

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.