Lannie is a marine conservation officer who has noticed death of algae in patches of coral and he is

Lannie is a marine conservation officer who has noticed death of algae in patches of coral and he is concerned about survival of the coral. Why would death of algae result in decimation of coral?

 

   A. Algae produce photosynthetic products used by coral.   
 

   B. Algae absorb fertilizer and other runoff products.   
 

   C. Algae require sunlight to survive.   
 

   D. Algae form a mat over the coral protecting it from sunlight.   
 

   E. Algae contribute to biological diversity.   


Erica is a conservation officer who has observed a die off of trout in a lake although carp are thriving. What test might she best perform initially?

 

   A. CFCs.   
 

   B. Ozone.   
 

   C. Sulfur dioxide.   
 

   D. Methane.   
 

   E. Oxygen.   

When a population stabilizes at a certain size, this number is called the:

 

   A. exponential growth curve.   
 

   B. seasonal boom size.   
 

   C. carrying capacity.   
 

   D. density distribution.