A.   survival of the fittest

B.   a behavior among species of animals that have ethics and values

C.   occurring when an individual behaves in a way that benefits another individual

A.   memory

B.   exclusive fitness

C.   relatedness between the actor and recipient

A.   Fitness benefit to both the recipient and the actor

B.   Fitness benefit to the recipient and a fitness cost to the actor

C.   Fitness cost to the recipient and a fitness benefit to the actor

A.   Immediate fitness benefit to both the recipient and the actor

B.   Immediate fitness benefit to the recipient and a fitness cost to the actor

C.   Immediate fitness cost to both the recipient and the actor

A.   Who gains the benefits of cooperation without paying a cost

B.   Who sat next to you in fifth grade

C.   Bee that stings an animal to protect the hive

A.   Mutualism

B.   Male aggression

C.   Reciprocal altruism

A.   False: altruism is not possible

B.   Regularly between chimps and gorillas

C.   Between related individuals who share genes

A.   Group selection

B.   Wedding crashers

C.   Reciprocal altruism

A.   Mutualism

B.   Reciprocal altruism

C.   Kin selection

A.   kin selection

B.   reciprocal altruism

C.   W.C. Fields