Calcite will scratch gypsum. this is an example of the physical characteristics called a. hardness c. fracture b. streak d. cleavage

Which of these statements are true about scientific theories and hypothesis

Nerve cells are specialized to respond to stimulitrue or false?

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