Question

in most animals,circulation is brought by a liquid called.............

Answer 1

in most animals circulation is bought by a liquid which is called blood.
...........

Answer 2

Blood. It is a body fluid that helps in delivering oxygen and all necessary nutrients to the cells in the body and also helps in transporting metabolic wastes away from those cells.

It has blood cells in them that is suspended in the blood plasma.

The blood fluid has 55% of Plasma in it and consists of water, glucose, hormones, proteins, mineral ions and carbon dioxide along with the blood cells.

The main protein of Plasma is Albumin and it helps in regulating the colloidal blood osmotic pressure.

The blood cells consist of White Blood Cells (WBCs), red Blood Cells (RBCs) and Platelets, also known as thrombocytes.