<span>A is the correct answer. The developmental norms are stages at which humans typically develop the ability to successfully complete an activity without aid, for example, being able to walk. When people have reached the age of the norm and cannot complete the activity, there may be cause for concern.</span>
I believe skeletal muscle fibers are dependent on oxygen and steady blood flow. Hope this helps.
One liter of spit each day
Either side to side hair or short hair like other boys do get
