Which principle states that fossils will be placed in rock layers according to a chronological order?" -faunal succession
-perimineralization
-index fossilization
-carbonization

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

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

Explain why the plants cortex would serve as the best food source for animals