Q. Identify the correct match:
Organisms Habitat Features
Diatom stagnant water photosynthetic with the stiff cell wall.
Gonyaulax seawater photosynthetic with the indestructible cell wall.
Paramoecium marine water photosynthetic with no cell wall.
Euglena freshwater Not photosynthetic and have no cell wall

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Solution:

Chrysophytes are fresh water organisms with indestructible cell wall. Gonyaulax is a Dinoflagellate which has a stiff cell wall and is autotrophic. Paramoecium is found in sea, marine and fresh waters and are neither photosynthetic nor do they possess a cell wall. Euglenoids are found in stagnant waters and are autotrophic but with no cell wall.