What type of cell is this

Which of the following terms describe a liquid molecule that has only single bonds between its carbon atoms

What is an animal that lives by preying on other animals

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