Describe the digestive system of amphioxus?

Question: Describe the digestive system of amphioxus?

Amphioxus, also known as Branchiostoma lanceolatum, is a small, fish-like marine animal that belongs to the phylum Chordata. The digestive system of amphioxus is relatively simple compared to that of more complex animals.

The digestive system of amphioxus consists of a straight tube that runs from the mouth to the anus. The mouth is located on the ventral side of the animal and is surrounded by a ring of cilia that help to create a current of water into the animal's body. The water is then filtered through a series of gill slits, which are used for both respiration and feeding.

The filtered water passes into the pharynx, where food particles are trapped by mucus and then moved by cilia to the intestine. The intestine is a coiled tube that runs through the body of the animal and is lined with cells that absorb nutrients from the digested food.

The waste products of digestion are eliminated through the anus, which is located near the posterior end of the animal.

Overall, the digestive system of amphioxus is adapted for filter feeding, which allows the animal to extract nutrients from small particles suspended in the water.

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