The movement is the ability of the organism to change its position from a place to another, it is from the characteristics that distinguish between the living organisms & non-living things, The human movement...
The waves are classified according to the direction of vibration of the medium particles relative to the direction of the propagation into the transverse waves and the longitudinal waves, and they are types of...
The transmission of juice from the root to the other parts of the plant The water and the mineral salts (juice) are transmitted from the root to other parts of the plant to use...
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...
