What would happens if our atmosphere consisted of pure oxygen

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

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

Where does the information about where each transcription factor binds originate?