Heat/melting and pressure.
The host is the host and the guard cell is the guard
The type of digestion that involves the actual breaking apart and chewing of food is called MECHANICAL DIGESTION. Mechanical digestion increases the surface areas of the food which makes the food easier to digest. Examples of mechanical digestion are mastication and peristalsis.
<span>The form of coal that is relatively abundant and most widely used is:
a. bituminous
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