Which of the following have the MOST similar genetic composition?

__________ receive messages from other cells, and at their opposite end there is a long extension called a(n) __________ which carries the messages to other neurons

a) Neurons; dendrite b) Dendrites; axon c) Axons; synapse d) Synapses; neuron

Whenever you have a tooth filled, you either pinch yourself or dig a fingernail into your knuckle while the dentist is working. In order to control pain, you are using

a. sensory conflict. b. counterirritation. c. systematic desensitization. d. sensory adaptation.