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Describe the functions of the following parts of the avian digestive system - Leaving Cert Agricultural Science - Question f - 2018
Question f
Describe the functions of the following parts of the avian digestive system. (i) The gizzard (ii) The crop.
Worked Solution & Example Answer:Describe the functions of the following parts of the avian digestive system - Leaving Cert Agricultural Science - Question f - 2018
Step 1
The gizzard
Answer
The gizzard is a muscular part of the avian digestive system that plays a crucial role in the mechanical digestion of food. It uses grit, which consists of small stones or sand, to help grind and break down food particles into smaller, more digestible sizes. This process is essential for the effective digestion of tougher materials such as seeds and grains.
Step 2
The crop
Answer
The crop functions primarily as a storage area for food in birds. It allows for the temporary holding of food before it moves into the gizzard for further digestion. The crop can also release food gradually into the digestive tract, facilitating a more efficient digestion process over time.