the age of Rock in years is called its absolute age geologist find absolute age by measuring the amount of certain radioactive elements in the rock
Answer:
Air Pressure
Explanation:
Air pressure is the only option here related to weight. And Air Pressure does get lower the higher the airplane goes.
The chromosome in bacteria is circular in shape while that of humans is linear. The replication of DNA in humans does not happen to the complete end of the chromosomes unlike in bacteria. Hence human DNA shorte with every replication.
Human DNA has introns (non-coding regions) while bacteria DNA does not hence replication of chromosomes is complex in humans. In addition humans, DNA is supercoiled with histones that have to be uncoiled for replication to occur. Bateria chromosomes do not have histones and uncoiling is not as complex.
The MRI shows every slice of the brain, a CT shows circulation, possibly the outside of the brain.
Amino acids are put together by peptide bonds, thus creating a long chain, if you are wondering how peptide bonds are formed it is by biochemically reactions that will extract a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.