________________ helping occurs when a helper seeks to increase his or her own welfare by helping another

Which form of death occurs at the point at which family members and medical personnel treat the deceased person as a corpse?

A) Clinical death B) Brain death C) Social death D) Biological death

When ESP tests are done using Zener cards, pure guessing in these tests will produce an average score of how many "hit(s)" out of 25 cards?

a. one b. three c. five d. seven