What enzyme forms covalent bonds between restriction fragments?

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

Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet

Collin would like to use the data a coworker has entered in a database. the problem is the coworker's database software is different from collin's. collin should