Due in a few mins, please help Describe, how melanin protects folate circulating in the blood from UV damage?

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

Variety of living organisms; includes genetic, species, and ecological types.

What makes a dominant allele different from a recessive allele