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.
What is a Normal White Blood Cell Count? A ânormalâ WBC count is considered to be approximately 4,500 to 10,000 WBCs per microliter or cubic millimeter (cmm) of blood. A WBC count that is less than 1,000 is low and is considered a primary risk factor for a serious infection.