Reciprocal altruism is likely to flourish in situations a. where the individual being helped is likely to return the favor in the future. b. of extreme stress. c. where the reward is more emotional than physical. d. that have a high cost-benefit ratio.

Which event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid-1800s? a) world war i b) the civil war c) the irish potato famine d) colonization of the new world plz fastest and right answer gets 94 !