Excretory Organs Across Taxa: Flame Cells, Malpighian Tubules, Nephridia
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Non-vertebrate excretion solves filtration without the nephron's three-step architecture, instead using taxon-specific organs — flatworm flame cells, insect Malpighian tubules, and annelid nephridia — each achieving the same filtering goal by a different structural route.
Show
Malpighian tubules concentrate uric acid before it exits with feces, conserving water on land.
Watch for
These organs solve the nephron's same problem without sharing its filtration-reabsorption-secretion structure.