In which group of organisms the cell walls form two thin overlapping shells which fit together?

Options

(a) Euglenoids
(b) Dinoflagellates
(c) Slime moulds
(d) Chrysophytes

Correct Answer:

Chrysophytes

Explanation:

In chrysophytes, the cell walls form two thin overplapping shells holding together. The body of Diatoms appears like soap box due to overlapping shells.