Some birds are pollinators that co-evolved with plants.
If the plant is green, it is a producer.
Some birds are pollinators that co-evolved with producers.
Some birds are pollinators that co-evolved with what other type of organism?
Options:
a. animals
b. humans
c. vegetation
d. producers
e. parasites
f. warm-blooded
g. Conifers
h. mammals