Why is the branching pattern of the bronchioles important for the function of the lower respiratory system? a) it keeps foreign particles out of the lungs. b) it maximizes the number of places where oxygen can be transferred into the blood c) it allows the lungs to expand and contract in order to maximize the amount of air that is breathed in d) it keeps the inside of the lungs lubricated

of those who start drinking before they're 15 will develop alcohol dependence

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'