Dominant structure-providing organisms serve as the base of the food web for the entire  ecosystem 

The practice of shrimp mariculture involves use of copious antibiotics and other chemicals to prevent disease outbreaks in crowded tanks.

Maximum Sustainable Yield Curve, based on the Logistic Equation of Population Growth 

Marine organisms are unlikely to make their way between the tropical Atlantic and Pacific through the Panama Canal, except in the ballast tanks of ships, because this canal is freshwater.

The intensely crowded conditions and extremely high diversity of coral reefs has made it virtually impossible for mutually beneficial associations to evolve in these ecosystems.

Questions 109-113: Pelagic organisms can lessen the pull of gravity in a variety of ways.  Choose the organism that uses each of the following to diminish the energy they would otherwise have to use to prevent themselves from sinking.     an oily liver 

grouper fish 

Questions 39-44: Two very different benthic systems in the deep sea are:  A) deep sea sediment communities and B) deep sea hydrothermal vent communities.  Indicate which of these communities is described best by each of the following phrases by choosing A. for “deep sea sediment communities” and B.  for  “deep sea hydrothermal vent communities”   inhabitants more likely to have long-distance dispersing larvae    

Which of the following food service styles is also known as French service?

A complete sanitation and safety inspection should be made at least  ,