Persons who identify as either male or female but whose behaviors are androgynous to a degree outside the norm are categorized as __________

Research on the language capabilities of apes clearly demonstrates that apes:

a. have the capacity to vocalize most English phonemes b. have the capacity to communicate meaning through symbols or gestures c. typically acquire language at the same rate as infants and toddlers d. lack the cognitive capacity to understand and produce meaningful communication

In Alzheimer's disease, neurofibrillary tangles result when ________ protein levels become elevated and disconnect from microtubules

a. tetrodotoxin b. tau c. amyloid d. tetanospasmin