Sarah and Karen have been married for several years, and have two biological children. Each woman carried one of the children, both times through the use of donated sperm. This family that they have created is called their family of .

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

How does the nervous system affect the excretory system?

What substance acts to prevent sudden ph changes in bodily fluids?