Chapter 39

_____________ a hormone that plays a role in vole matingbehavior, also affects human social behavior. a. Testosterone b. Oxytocin c. FSH d. Estrogen

In cichlid fish, the transformation from subordinate to dominant phenotype ____________ a. involves epigenetic changess b. depends on diet c. occurs over several years d. is an example of altruistic behavior

The proximate cause of feeding differences between sitter and rover fruit flies is _________. a. kin selection b. natural selection related to competition for food c. a difference in alleles at one locus d. an environmentally stimulated epigenetic change

A honeybee dance transmits information about a. predators b. mating opportunities \(c\). the location of food d. the amount of honey

A _______ is a chemical signal that conveys information between individuals of the same species. a. pheromone b. neurotransmitter c. hormone d. releaser

In what group of vertebrates are monogamy and cooperative care of the young by two parents most common? a. fishes b. amphibians \(c .\) birds d. mammals

The reproductive success of ___________ is most often limited by access to mates. a. males b. females

In ________________ all workers are sterile females. a. termites b. honeybees c. naked mole-rats d. all of the above

Eusocial insects _______________ a. live in extended family groups b. include termites, honeybees, and ants c. show a reproductive division of labor d. all of the above

Helping other individuals at a reproductive cost to oneself can be adaptive if those helped are __________ a. members of another species b. competitors for mates c. close relatives

A vampire bat sharing food with an unrelated bat that previously fed her is an example of __________ a. kin selection b. imprinting c. reciprocity d. conditioning

A female lion who shares food with her sister's offspring increases her own ______________ a. domin b. reproductive success c. sexual dimorphism d. inclusive fitness

Match the terms with their most suitable description. a. time-dependent learning b. communal display area c. learning to ignore a stimulus d. defended area with resources e. assisting another individual at ones own expense f. involuntary response becomes tied to a stimulus g. individuals hide behind others altruism selfish herd habituation lek territory imprinting dominance hierarchy classical conditioning