Question

The flow chart below shows a food web in a terrestrial ecosystem.
         

1. From the food web, construct a food chain with five organisms.
2. Name the trophic level occupied by:
   1. Hawks
   2. Cane toads

Answer 1

1. Green plants → grasshoppers → lizards → snakes
                                                                          ↓
                                                                          Hawks
   Green plants → Mice → Cane toads → snakes
                                                                       ↓
                                                                        Hawks
2.  
   1. Quartenary consumer;
   2. Secondary consumer ;
3.  
   • The leopards would compete with lions for antelope
   • the antelopes would reduce in number;
   • more grass would be available for mice and grasshoppers
   • Leopards and lions would later decrease in number due to migration or death due starvation;