Hollow.
endosketon
Cape Sparrow was created in 1776.
A hydrostatic skeleton is a type of skeleton many animals in the animal kingdom have.
They have a type of skeleton called a hydrostatic skeleton. This type of skeleton is a fluid filled sac which is surrounded by muscles.
Donald B. Sparrow has written: 'A Cape Cod native returns' -- subject(s): Anecdotes, Biography, History, Social life and customs
Internal Skeleton
a sponge skeleton
internal skeleton
it doesn't have a skeleton
talons
worm
The sparrow is a bird of the order Passeriformes. There are about 40 species of sparrow, and these include the Passer (true sparrows), Petronia, Rockfinch and snowfinches.
The appendicular skeleton is attached to the axial skeleton.