Biology, 06.10.2019 04:30 sweetgirl22899

Apopulation of hummingbirds feeds exclusively on nectar from orchids. two species of orchids exist in the hummingbirds' habitat. one orchid species
has long tubes to store nectar while the other has short tubes to store nectar. the hummingbirds have a range of beak lengths, and the beak length
determines which nectar tube an individual can feed from. this population of hummingbirds is splitting into two phenotypic groups

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