HEY THERE! PLEASE HELP ME ANSWER THE FOLLOWING QUESTION- CORRECT ANSWER SHALL BE MARKED AS BRAINLIEST and be given 20 points♡♡ Question: "What does the doubled headed arrow for the tertiary consumers mean"?

*(I fr learned about this like a year or 2 ago but forget Imao)*

Thanks)) have a good day yall<3

Data courtesy of the un development programme 2006-2008 and world bank 2009 the chart above compares measures of development using the hdi and gdp. why might turkey rank lower in the hdi indicator even though it has a high gdp? a. turkey has a lower gdp than comparable countries in the hdi ranking. b. turkey must increase its hdi to have a higher gdp ranking. c. turkey is only compared to other european countries in gdp, not to the world, as it is in the hdi. d. turkey may struggle to provide adequate education or health care, or it may have a lower life expectancy.