plant reproduction / seed production requires pollination & pollination requires pollinators / pollinating animals -> vegetable original requires pollinating people plant reproduction requires pollinating animals  vegetable original requires pollinating people & if a process requires something then that something helps that process -> pollinating animals help plant reproduction pollinating animals help plant reproduction  a hummingbird is a kind of bird & a animal is a pollinating plant -> a hummingbird is a kind of pollinating animal a hummingbird is a kind of pollinating animal  pollinating animals help plant reproduction & a coral is a mean of pollinating plant -> hummingbirds help plant reproduction