Textbook Questions
| 1. | 
                            Artificial ecosystems
                             Difficulty: medium  | 
                        
                                 
                                    
                                    3
                                 
                         | 
                    
| 2. | 
                            Long answer question I
                             Difficulty: hard  | 
                        
                                 
                                    
                                    5
                                 
                         | 
                    
Practice Questions
| 1. | 
                            Ecosystem classification
                             Difficulty: easy  | 
                        
                                 
                                    
                                    2
                                 
                         |