Ventifacts are created by a process of erosion called

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

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

One of the purposes of transcription is to produce a sequence of bases that