Radioactivity due to heavy elements
Friction caused by earths fast rotation
The light will enter they eye and it will be refracted as it
passes through the cornea. It will then pass the pupil which is controlled by
iris and will be further refracted by the lens. The cornea and lens together
will form a compound lens in order to project images which are inverted into the
retina.
Answer:
<em>The principle of common descent states that all organisms in the world exist because of a common ancestor which gave rise to all the life seen on Earth. The organisms which are more closer to one another might have a common ancestor in the near past as compared to other organisms. The organisms which share distant common ancestors have less common characteristics. This principle has led us to form the basis for the formation of evolutionary biology. </em>
Juglar Vein
This vein drains blood from head to heart.
Sub-clavian Vein
This vein drain blood from shoulder to heart.
