front 1 | back 1 What a plant or animal does |
front 2 | back 2 The organ that serves as the primary control center of the nervous system in all vertebrate and most invertebrate animals |
front 3 | back 3 A chemical that enters the body |
front 4 | back 4 Signals that enter the body in the form of electromagnetic stimuli |
front 5 | back 5 Signals that enter the body through physical touch or vibration |
front 6 | back 6 A cell specialized for transmitting fast electrochemical signals |
front 7 | back 7 A nerve ending that sends signals to the central nervous system when it is stimulated |
front 8 | back 8 An action or condition that provokes a response |