You are presented with the question "What has a characteristic life cycle that includes alternation of generations?" and the following answer choices: 
- humans
 - leaves
 - Oak
 - dogs
 - Trees
 - cacti
 - amoeba
 - ferns

Now knowing that all plants have a characteristic life cycle that includes alternation of generations and all ferns are shade plants, choose the best answer.


 

        ferns 