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a railroad

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Q: Only two backbones and thousands of ribs?
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Related questions

What has thousands of ribs and two backbones?

A train track


Only two backbones and a thousand ribs?

two fat guys eating Pork ribs at a bar :P


What has two backbones and a thousand ribs?

Dinosaur


What has two back bones an thousands of ribs?

Railroad Tracks


Which pairs of ribs are known as floating ribs?

Lower most two pairs of ribs (11th and 12th) are known as floating ribs because they are only attached to vertebrae but not to the sternum.


Where do your ribs join?

The ribs join at the back. In front they are connected to the thorasic basket, also known as the breast bone. Only the last two ribs do not join each other . They are the floating ribs.


What kingdom can be divided in to two groups those with backbones and those without backbones?

nonvascular


Are plants vertebrate or invertebrate?

Neither those two groups only refer to animals! Vertebrates are animals with backbones, invertebrates don't have backbones.


What is a floating rib?

Floating ribs are four atypical ribs (two lowermost pairs, XI-XII) in the human ribcage. They are called so because they are attached to the vertebrae only, and not to the sternum or cartilage coming off of the sternum. Some people are missing one of the two pairs. Others have a third pair. Most, however, possess only two pairs. Their position can be permanently altered by a form of body modification called tightlacing, which uses a corset to compress and move the ribs.


Is there a bone in your body begin with R?

Ribs are part of the human body. They are a series of twelve bones in the human body.


What are the bottom 2 pairs of ribs called?

The lowest two pairs are known as floating ribs.


What are the two main ribs covering the heart?

how many ribs that covering the heart