1. Create the nervous system of a simple fictional sea creature which is round with a single tail controlled by two antagonistic muscles. You may only use two light-sensitive neurons, but as many excitatory and/or inhibitory neurons as you wish. Each neuron used must be either entirely excitatory or entirely inhibitory. The goal of the nervous system is to always have the sea creature swim toward light regardless of the direction from which light is first encounter. Use the strategies discussed in class such as collaterals and reciprocal inhibition make sure to explain any complicated connections or functions and indicate whether a neuron is excitatory or inhibitory. 2. Relevant equations 3. So due to the fact that this creature is so simple, I believe that I am over thinking it. My creature would have Two light sensitive neurons. One on each side of its round body. Each of the light sensitive neurons would lead directly to an alpha motor neuron that creates the motor unit of each of the antagonistic muscle group. (the sensory neuron on its left side would be the alpha motor neuron for the muscle on the left side of its tail only. Visa versa for the other side) the Alpha motor neuron would be connected by an interneuron that would create reciprical inhibition between the two muscles, allowing them to be anatgonistic to each other. The light sensitive neuron would have an inhibitory effect on the motor neuron when light is not present. I may be just over thinking it, because I feel that my answer is not good at all and that it needs to be more complicated than that. I also think I maybe missing something in the question. Any help would be much appreciated!