If you were to study a food chain in a small section of tropical forest, what co

If you were to study a food chain in a small section of tropical forest, what concept would represent links in the chain?

 

   A. Energy cycles.   
 

   B. Decomposers.   
 

   C. Autotrophs.   
 

   D. Trophic levels.   
 

   E. Ecosystems.   


Which of the following corn seed varieties had the highest yield under conditions of no infestation?

 

   A. BT123   
 

   B. BT456   
 

   C. Golden   
 

   D. Super Harvest    
During metaphase:

 

   A. Sister chromatids are pulled apart to opposite poles of the cell   
 

   B. DNA is in the form of uncoiled chromatin   
 

   C. Centrioles move to opposite ends of the cell   
 

   D. Chromatids are attached to a separate spindle fiber by its centromere   
 

   E. Cytoplasm divides and the nucleolus reappears