Help I’ll do anything BUT I HATE links so please NO links

Models are non-visual ways of coummincating how someone thinks about something in the natural world

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

What best describes the dropping height of a ball that bounces back up to a height of 45 cm