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Author Question: The ____ or preen gland in birds, which is lateral to the tail feather attachment, secretes oil that ... (Read 25 times)

penguins

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on: Jul 18, 2018
The ____ or preen gland in birds, which is lateral to the tail feather attachment, secretes oil that is used to waterproof feathers.
 A) tertiary
  B) remige
  C) uropygial
  D) pteryla

Question 2

In birds, the areas or tracts of skin that lack feathers or down are called:
 A) barbules
  B) orbitals
  C) rachis
  D) apteria


aloop

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Reply #1 on: Jul 18, 2018
Answer to Question 1

C

Answer to Question 2

D


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