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Bezzdna [24]
3 years ago
13

The group listed here that contains silica in its surface covering is the:

Biology
1 answer:
Zina [86]3 years ago
4 0

The group that contains silica the diatoms.  Diatoms are unicellular algae. They have a silica based cell wall known as a frustule, which gives each diatom a particular shape.

Diatoms exist as single cells  though some maybe found in colonies that create beautiful shapes which can be leaf - shaped, oval, round and other shapes.

The outer shells of diatoms are used in industry in the manufacture of many products such as toothpaste. The gritty texture in toothpaste is due to addition of diatoms .

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heat transfer?

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Like other osmoregulatory animals that live in marine environments, sharks maintain tissue concentrations of sodium, potassium,
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