Fruit Flies Are Either "Rovers" That Move Rapidly Over a Surface

question 8

Multiple Choice

Fruit flies are either "rovers" that move rapidly over a surface looking for food or "sitters" that move slowly over a surface.When a rover and a sitter are mated,all of the offspring are rovers.When two of these offspring are mated,75 percent of the offspring are rovers and 25 percent of the offspring are sitters.This suggests that

• A) fruit flies are very efficient at learning how to forage food from their parents.
• B) food-foraging behavior in fruit flies is regulated by a gene.
• C) food foraging is an imprinted behavior.
• D) food foraging is a form of communication.