Not all human bones contain marrow.
Usually in these bones: hip bone, breast bone, skull, ribs, vertebrae and <span>shoulder blades. </span>
<span>So this statement is False. </span>
All of the above ; stimulants can cause all of those
Alveoli small balloon-like structures which are responsible for the oxygen exchange in the lungs across the membranes. These are attached to the branches of the bronchial passages. These alveoli inflate and deflate with inhalation and exhalation. Answer is C.
