Answer:
The answer is option b. sacral bones.
Explanation:
The sacral bones are a shaped like a triangle and found below the fifth (5th) lumbar vertebrae and in between the hip bones. The joint formed with the hip bones is called the sacroiliac joint.
The central nervous system has two functions. One, where the brain is, is to be the center of thoughts and the interpreter of outside influences, while the spinal cord connects all parts of the body with the brain.
Answer:
A physical change effects a substance physically. Examples include cutting, bending, dissolving, freezing, boiling, and melting.
A chemical change effects a substance chemically. Examples include burning, rusting, and digesting.
Hope this helps.