You are presented with the question "Hummingbirds are what they are today as a necessary consequence of their relationship to what?" and the following answer choices: 
- a feeder
 - humans
 - bees
 - survival
 - animals
 - Plants
 - Earth
 - weeds

Now knowing that some birds are pollinators that co-evolved with plants and hummingbirds are the most common bird pollinators, choose the best answer.


 

      Plants   