These animals do not have a bony skeleton. All insects are invertebrates. They do have a skeleton but it is on the outside of their bodies and is not made of bone. These two main groups have been divided into smaller groups.
The white blood cell (WBC) count indicates the number of white blood cells in a sample of blood. This count provides a clue to the presence of illness.White blood cells are made in the bone marrow and protect the body against infection and aid in the immune response.his count provides a clue to the presence of illness. White blood cells are made in the bone marrow and protect the body against infection and aid in the immune response.
White blood cell count (WBC). The number of white blood cells in a volume of blood. Normal range varies slightly between laboratories but is generally between 4,300 and 10,800 cells per cubic millimeter (cmm).This can also be referred to as the leukocyte count and can be expressed in international units as 4.3 - 10.8 x 109 cells per liter.ormal range varies slightly between laboratories but is generally between 4,300 and 10,800 cells per cubic millimeter (cmm). This can also be referred to as the leukocyte count and can be expressed in international units as 4.3 - 10.8 x 109 cells per liter.