Question

Dance fly females form swarms in which several dozen individuals gather together to fly about in circles. When a male dance fly enters the swarm, females inflate their abdomens and move toward the male, who carefully selects one of the many females as his partner. Given this information and based solely on the parental investment theory by Robert Trivers, which of the following predictions would you make? Select one: a. Female dance flies should receive direct benefits from the male for offspring b. Female dance flies should receive only indirect benefits from the male for offspring c. Female dance flies should receive both direct and indirect benefits from the male for offspring d. The male will probably invest more in the offspring e. The female will probably invest more in the offspring

Answer 1

In above question D is the correct answer because according to Parental investment theory, a term coined by Robert Trivers in 1972, predicts that the sex that invests more in its offspring will be more selective. So thats why no D is correct