nooshonnD4iannahm nooshonnD4iannahm

04-02-2016
Biology

Answered

Diatoms have cell walls composed of _____.

Asilicon dioxide
Bcarbon dioxide
Cchitin

Verified Answer :

VestaHofman VestaHofman

01-03-2019

Answer: A. Silicon dioxide

Diatoms are unicellular algae that are found in the freshwater, brackish and marine water. These organisms exhibit cell wall that are made up of silica that is hydrated silicon dioxide. This type of cell wall is called as frustule. The cell wall is divided into two valves called as thecae.

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