Describe the function of the nucleus , gogli apparatus, ribosome

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

Solutions to environmental problems in europe must

What best describes the dropping height of a ball that bounces back up to a height of 45 cm