Well-sorted sediments have grains of similar size, and are the result of much sediment transport and earth processes which segregated the sediment by depositing different size fractions in different places.
Warm blooded animals living on land
Oxygen and carbon dioxide travels to and from tiny air sacs in the lungs, through the walls of the capillaries, into the blood. Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs.

A food allergy is a reaction that occurs when the <u>body</u> system reacts to a harmless substance in food, such as a protein that does not undergo digestion
Concentration gradient, size of the particle, and temperature are all factors