The excretory organ of Saccoglossus isa)Malphighian tubulesb)Proboscis...
A proboscis is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In invertebrates, the term usually refers to tubular mouth parts used for feeding and sucking. In vertebrates, a proboscis is an elongated nose or snout.
The excretory organ of Saccoglossus isa)Malphighian tubulesb)Proboscis...
Excretory Organ of Saccoglossus:
Saccoglossus is a marine hemichordate belonging to the family Harrimaniidae. The excretory organ of Saccoglossus is the Proboscis gland.
Proboscis Gland:
The Proboscis gland is a specialized structure found in the proboscis of Saccoglossus. It is responsible for the excretion of waste products from the body. The Proboscis gland consists of a network of tubules that are lined with ciliated cells. The cilia help in the movement of waste products towards the excretory pore.
The Proboscis gland of Saccoglossus is similar to the nephridia of annelids and the Malphighian tubules of insects. However, unlike the Malphighian tubules, the Proboscis gland does not play a role in the regulation of water balance.
Excretory Pore:
The waste products excreted by the Proboscis gland are eliminated from the body through the excretory pore. The excretory pore is located at the base of the proboscis and opens to the exterior of the body.
Conclusion:
In conclusion, the Proboscis gland is the excretory organ of Saccoglossus. It is responsible for the excretion of waste products from the body, and the excretory pore eliminates these waste products from the body.