What is a Vegan? Vegetarians do not eat meat, fish, or poultry. Vegans, in addition to being vegetarian, do not use other animal products and by-products such as eggs, dairy products, honey, leather, fur, silk, wool, cosmetics, and soaps derived from animal products.
White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.All leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell.Leukocytes are found throughout the body, including the blood and lymphatic system. Five different and diverse types of leukocytes exist.ll leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. Leukocytes are found throughout the body, including the blood and lymphatic system. Five different and diverse types of leukocytes exist.
The lymphocyte is the main cell of the lymphoid tissue. Lymphocytes are a type of white blood cell which produce antibodies to kill any pathogens which invade the body.They a â¦ re small white blood cells which have large nuclei, but no granules.They produce antibodies that fight disease and harmful microbes in the body or mark the disease for the phagocytes to engulf.ymphocytes are the second most common leukocytes which comprise 20 to 40% of the leukocytes in the blood. Lymphocytes, which are also known as natural killer cells, are also â¦ special lymphocytes that can recognize a pathogen by the antigens on its cell wall and it will release chemicals to destroy it.