The human nervous system importance The nervous system is carrying the nerve messages from one of the body areas to another, It regulates and coordinates all the vital processes within the body, It receives the...
The structure of the root hairs The root hairs extend from the epidermis cells of the root, they are lined from inside with a thin layer of cytoplasm, and each root hair has a...
The reflex action Your body makes an involuntary response by the nervous system and this happens when your body is subjected to the external stimuli such as the strong light, the heat or smell...
The force The force is the effect that changes the state of the object, the measuring unit of the force is “Newton” related to the scientist “Isaac Newton”, the motion of any object and...
