What determines the similarities in anatomical features among organism

a. geographical location
b. weather and climate
c. shared habitat
d. genes and chromozones

What is the mrna strand that would be copied from this dna strand

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Check all that apply 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? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials