Excretion in planaria | Excretion in hydra | class 12

In this topic "Excretion in Planaria & Hydra" we will discuss about the quistions
Long Quistion
1.Discuss Excretion in planaria and Earthworm?
Short Questions
1.Write about excretion in hydra?
2.Define protonephradium?
3.What are flame cells? Give their role
4.Why flame cells are called so?
5.Write excretory organs of a. Planaria b. Earthworm c. Cockroach
a. Protonephradium b. Metanephradium c. Malpighian tubules
6.Write about excretion in freshwater and parasitic flatworms
7.Differentiate between protonephridium and metanephridium?
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• Excretion in animals |...
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