How can evolution impact human health and medicine?
( answer with a real answer and not just the reworded question, )

The deserts of the sahara and australia are associated with

What is the name of the two satelites on mars

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