Prokaryotic cells are surrounded by a cell membrane.
True
False

Provide one reason why mitosis occurs.

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

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution