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In birds, the areas or tracts of skin that lack feathers or down are called:

horatioo

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6 years ago

In birds, the areas or tracts of skin that lack feathers or down are called:

In birds, the areas or tracts of skin that lack feathers or down are called:

A) barbules
B) orbitals
C) rachis
D) apteria

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ngchristinee

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