The outer layer of a cell that acts as a gatekeeper to a cell is the
plasma wall
plasma membrane
outer membrane
nuclear membrane

Variety of living organisms; includes genetic, species, and ecological types.

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

Me the formula cacl2 represents the compound