* What Mexican states comprise the majority of the Yucatan peninsula?
* What is the topography of the area?
* What is geographically unusual about the Yucatan Peninsula?
* Fresh water in the Yucatan is often found in large sinkholes where the substrate has collapsed over an underground river. What are these sinkholes called?
* Who were the primary native people of the region?
* What is the name of the most famous ruin in the region?
* The Yucatan has severl Biosphere Reserves, areas designated by the United Nations as places of special ecological significance. For what is the Rio Celestun Biosphere Reserve most famous?
* What is the primary vegetation community of the Yucatan?
* The Yucatan is home to many spectacular birds. Which one would not be found there?
* For what habitat is Cozumel Island most known?
* Which monkey would be found in the Yucatan?
* A common poisonous snake of the area is also known as the 'terciopelo'- literally the 'three-step snake' due to the strength of its venom. By what name is this snake more commonly known?
* This large, herbivorous sea mammal is found in sheltered bays on the Yucatan coastline.
* Several hatcheries in the Yucatan are devoted to raising and releasing these animals.
* Development in the Yucatan is a fairly recent phenomenon. Which city is not in the Yucatan?
* An interaction in which one organism beneficially affects a second organism, but the second has no effect on the first.
* The limits, for all important environmental features, within which individuals of a species can survive, grow and reproduce.
* An organism whose body temperature is strongly correlated to that of its external enviroment.
* The production, in some years, of exceptionally large crops of seeds by trees and shrubs.
* Pteridophytes are commonly known as?