Diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? Check all that apply
The shells make up the diatomaceous earth used in filters
They are used in food products
The shells can be used in some insulating materials
It can be used as an ingredient in abrasives
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What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

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