While working in a lab you break the tip of a scaffold what is the appropriate action to take

Which properties describe all matter?

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

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.