Their spikes.
Sea urchins use a structure called Aristotle's lantern, which consists of a complex arrangement of teeth and muscles, to scrape food from surfaces. They primarily feed on algae and other organic matter, using their tube feet to help capture and manipulate food items. Once the food is in position, the teeth of the lantern grind it down before it is directed into the mouth. This unique feeding mechanism allows sea urchins to efficiently process their food in their underwater environment.
Sea urchins get their food at the bottom of the sea floor to eat dead fish.
to help you swallow the food
Crabs use their claws to acquire and manipulate food. They also use the claws for some food processing, and to help move food toward the mouth. Crabs have specialized mouth parts for finer food processing. Once the food particles are small enough, they are moved into the digestive tract into a chamber in the stomach called the gastric mill, where the food is further processed into smaller particles and nutrients. These are then passed on and either absorbed or excreted.
Mine help me shovel food into my mouth.
in the front of the mouth
Sea urchins are very important to their habitat because they help maintain the amount of algae in the ocean.
Chewing food releases digestive juices into the mouth - which aid in breaking down the food.
Chewing food releases digestive juices into the mouth - which aid in breaking down the food.
The mouth is the beginning of the digestive system. The saliva glands activate when you have food in your mouth, thus breaking down the food. Your teeth chew the food, helping the salivary glands with the process of breaking it down. Hope this helps!
The mouth and the stomach help to break down food mechanically. In the mouth, food is chewed and mixed with saliva to form a bolus. In the stomach, muscles contract to churn and mix the food with gastric juices to form chyme.
teeth and saliva