Though it may not seem like it, bones are hollow.
True
There are certainly true or false tests and you can do them if your teacher asks you to do them.
independent variable
False.
It is false.
true
False there are no bones ivolved
no a human body has 206 bone in it body
True
True
true
False
False.
False
birds have hollow bones to help them fly
It has indeed been proved that fox do have hollow bones. It has indeed been proved that fox do have hollow bones.
hollow bones belongs to chordata phylum