Which of these is a body fossil. a shrimp burrow b dinasour bone c dinasour footprint d an ornithopod track

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

Acommon kind of mechanical weathering is called

18. how do the cells in meiosis differ from the cells in mitosis?