Question

describe the changes that take place in the composition of human blood as it passes through the lungs, liver, kidneys, small intestine

Answer 1

As the blood passes through lungs it gets oxiginated from deoxiginated blood
As it passes from kidneys it get pure or cleaned
As it passes from small intestine it gets filled with nutrients make from food.
As it passes liver the broken cells are removed from it and new cells r formed.

Answer 2

when blood passes from lungs it becomes oxygenated.

when it passes through liver the blood becomes rich in capacity of clotting.

when blood passes through kidney it become rich in salts,minerals and water.

when blood passes through small intestine it becomes rich in vitamins and orotiens absorbed from food.