What is the predicted sand dollar population in a 30m2 area of reef?

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Anton created a chart listing different types of materials. which best complete the chart?