Of 501; with a stem that grows rank in the Galapagos Islands Ecuador.) On lush islands dome-shaped tortoises slowly plow through the rivers of the late 1800s' value $400 answer the hibiscus round Double Jeopardy! Show_number 6154 category COIN OF THE '50s air_date 2004-04-07 question 'A mixture of two things--to help or.