The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.igestion begins in the mouth with the secretion of saliva and its digestive enzymes. Food is formed into a bolus by the mechanical mastication and swallowed into the esophagus from where it enters the stomach through the action of peristalsis.
The stigma is generally in the center of the flower and stands up on the style, taller than the surrounding anthers. It usually has a gelatinous or visceral appearance, which is slightly damp and furry.
This is called the stigma and it is this part of the carpel which collects the pollen from insect bodies. The daisy: A composite flower. The daisy is pollinated by a variety of animals which are attracted to it by its bright yellow centre and white petals.The daisy, however, is not one flower. It is made up of two types of small flowers which are arranged to give the impression of being a single flower.his is called the stigma and it is this part of the carpel which collects the pollen from insect bodies. The daisy: A composite flower. The daisy is pollinated by a variety of animals which are attracted to it by its bright yellow centre and white petals.