Ais a polymer produced by living organisms composed of linked monomers.

A Macromolecule is a polymer produced by living organisms composed of linked monomers.

Explanation:

Polymer, composed of the large molecule is known as macro-molecule. Macromolecules are large molecules, such as cellulose, protein, nucleic acid, commonly made by the polymerization of multiples of simpler chemical units called monomers. They are made up of thousands of atoms or more.

Protein and nucleic acid both are used to make tissues and other components in the living organisms.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.