____ is the number one source of infant mortality beyond the first month but within the first year

The tendency to avoid helping other people in emergencies when other people are also present and apparently capable of helping is known as the__________

A) polarization effect B) actor-observer effect C) bystander effect D) recency effect E) Select

"A triangle must be a closed shape with three sides made of straight lines.". This statement is an example of a

a. prototype. b. positive instance. c. conceptual rule. d. disjunctive concept.