Question

which statements describe functions of the backbone? check all that apply. it supports the body’s weight. it helps to break down food. it surrounds and protects the brain. it replaces the spinal cord in vertebrates. it allows for flexibility and movement. it helps regulates water balance.

Explanation:

• The backbone (vertebral column) provides structural support for the body's upper weight.
• Breaking down food is a function of the digestive system, not the backbone.
• The skull surrounds and protects the brain, not the backbone.
• The backbone encloses and protects the spinal cord, it does not replace it.
• The segmented structure of the backbone allows for body flexibility and movement.
• Regulating water balance is a function of the excretory/endocrine system, not the backbone.

Answer:

It supports the body's weight.
It allows for flexibility and movement.