a lr question, thanks

breew

sea  turtles nest only at their own birthplaces. after hatching on the beach, the turtles enter hte water to begin their far-ranging miration, only returning  to their birthplaces to nest some 15 to 30 years later. it has been hypothesized that newborn sea turtles learn the smell of their birth environment , and it is this semll that stu=imulates the turtles to return to nest.

which one of the followin g if true would cast the most serious doubt on the hypothesis inthe passage.

a beaches on which sea turtles nest tend to be in secluded locaitons such as on islands

b sea turtles exposed to a variety of environments under experimental conditions preferred the envionment that contained sand from their own birthdaypleaces

c electronic tags attached to sea tutles did not alter their nesting patterns

d unlike other types of turtles sea turtles have a well-developed sense of smell

e sea turtles that had their sense of semll destroyed by exposure to petroleum products returned to nest at their own birthdayplaces.

which one u d like to choose?

3x

zzhou

e

jnchasedream

(e). If sea turtles can still return to their birthplace even after their sense of smell have been destoryed, it definitely weaken the argument about the "smell hypothesis"