How can the zebrafish become addicted to the same substances that humans often abuse, such as narcotics? O The lateral line system in zebrafish is electrically stimulated by the presence of dissolved narcotics, which causes them to swim towards th water with the highest concentration. O As herbivores, zebrafish are able to obtain nutrition by ingesting cannabinoids. O The central nervous system of humans and zebrafish have homologous neural receptors, neurotransmitters, and signaling pathways. O Zebrafish seek drugs in response to positive conditioning; they are trained to associate drugs with food rewards. O Zebrafish do not have a central nervous system elaborate enough to become addicted to psychoactive substances.

1. Loss of delta in mice suppresses the oscillator. Los of delta in zebrafish permits the oscillations to continue but abolishes synchrony in adjacent cells. What does this say about the Delta-Notch system in these organisms?

|26 Which protein is NOT attached to the vesicle? O a. Synaptobrevin O b. SNARES VAMP O d. Syntaxin O e. Synaptotagmin Spatial summation is adding all of the IPSPS and EPSPS that arrive at any time on a cell. Select one: O True O False |3p Which area is responsible for proprioception (the ability to know where your body is in space) Select one: O a. Occipital Lobe O b. Frontal Lobe O c. Temporal Lobe O d. Parietal Lobe |31 Match the following terms to their definitions Resting membrane potential Choose. -55mV Pushes the charge away from threshold (more negative) -70MV Absolute Refractory period Inhibitory post-synaptic potential Excitatory post-synaptic potential Relative refractory period Pushes the charge towards threshold (less negative) Period when a cell cannot produce another action potenti

Which of the following would be part of a sympathetic nervous system response? O dilatation of bronchioles in the lungs O lowering blood pressure O dilating (opening up) blood vessels in the erectile tissue of reproductive organs O contraction of the bladder wall O none of the above Next « Previous