Answer:
I am a word of six; my first three letters refer to an automobile my last three letters refer to a household animal my first four letters is a fish. What am I?
I have feathers that help me fly; with head and body but I'm not alive. Very skinny and a fixed length how far I go depends on your strength.
Angels and pilots work with me.
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
What is black and white and red all over?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.