Answer:
The correct answer is - option A. mandible.
Explanation:
Mandible is the bone of jaw especially lower jaw. It is not a bone that protects any vital organ it just help to close and open mouth for essential mouth movements like eating and talking.
Sternum and Ribs are the bones that plays role in providing protection to vital organs such as heart and lungs. Vertebral column is the bone that protects spinal chord while providing stiffness to the body and back.
Thus, the correct answer is option A. mandible.
the answer is d because it give off the hints from the answer
It would be A. NADH -- electron carrier
For decades, scientists have suspected a star explosion called a supernova helped trigger our solar system's formation. In particular, the shock wave from the explosion is thought to have compressed parts of the nebula, causing these regions to collapse
Decomposers recycle all the organic molecules of all the dead organisms, by breaking them down and make these nutrients available to the environment, which can now be used as the source of energy for other organisms. Decomposers can be bacteria, fungi or invertebrates.