The Chesapeake Bay, which is along the coast of the Eastern U. S., is the largest estuary in the country. Many rivers, including the Potomac, empty into this section of the Atlantic Ocean. During the 1970s, areas of the bay were found to have low levels of oxygen and could not support life. What was the cause of this problem?

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants, the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

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

Can someone i have no idea of how to do this.