Question

match the Column 1
Column II
A. Nephridia B. Malpighian tubules C. 1. Platyhelminths 2. Crustaceans
Green gland D. Flame cells
3. Cockroach 4. Earthworm​

Answer 1

A . Nephridia - Earthworm

B .Malphigian tubules - Cockroach

C .Green gland - Prawn

D.Flame cells - Platyhelminthes

EARTHWORM:

• Earthworm belongs to phylum ANNELIDA.

• The excretory organ of earthworm is nephridia.

• There are three types of nephridia present in earthworm namely integumental nephridia , septal nephridia and pharyngeal nephridia.

COCKROACH:

• Cockroach comes under the phylum arthropoda.

• The type of excretory structure present in cockroach is Malphigian tubules.

• Malphigian tubules are the yellow colored, 100 to 150 tubules present between midgut and hind gut of cockroach.

• They excrete nitrogenous waste in the form of uric acid.

PRAWN:

• Prawn also comes under phylum arthropoda.

• Prawn has a specialised excretory structure called green gland or coxal gland.

PLATYHELMINTHES:

• Phylum platyhelminthes have primitive excretory structure called flame cells.

• The main function of flame cells are osmoregulation.

• The flame cells are associated with solenocytes.