Which type of intelligence increases steadily throughout adulthood?

According to Jung, complexes

a. Form around an archetype b. Represent problems that must be worked through c. Are repressed desires, thoughts, or impulses that combine in the unconscious d. All of the above

Otto Loewi collected the fluid around a frog's heart and injected it onto another frog's heart. What did he demonstrate? a. Some synapses operate by releasing chemicals

b. Synapses control complex emotional responses. c. Synapses can be either excitatory or inhibitory. d. Synapses in the periphery use the same neurotransmitters that the brain uses.