Where do graded potentials get converted into action potentials on the neuron?

Surveys on activity trends among older adults indicate that approximately what percentage of adult populations are aerobically active?

A. 80% B. 50% C. 30% D. 10%

Brigid has been diagnosed with dissociative identity disorder. Brigid is the host personality. We can expect that the alter identities

a. are very much like Brigid. b. are strikingly different from Brigid. c. only "come out" when there is no stress in the environment. d. are very much like one another.