excretory structures appear for the first time in ______
answer fast plz guys
Answers
Answer:
Archinephrons
Explaination : Excreatory structure appear for the first time in archinephrons .
archinephrons are first time discovered in primitive vertebrates such as sharks.
Answer:
The Excretory structure appears for the first time in Platyhelminthes and the specialized excretory cell is known as Flame Cell.
Explanation:
Flame cells are the specialized cells of Platyhelminthes that helps in the removal of waste product of metabolisms like ammonia and other non-useful materials called excretion. It also helps in Osmoregulation.
Flame cells are usually of irregular shape which sends out the pseudopodial processes into the surrounding tissue. Each flame cell has an intracellular lumen or cavity in which hang a few long cilia; each arising from a basal granule situated in the cytoplasm.
In the living Platyhelminthes(flatworms), cilia vibrate like the flickering of a flame. The flame-like appearance of vibrating cilia gives the name flame cell.