Did some research and found "Pollen Grains"
I hope this is one of your answer choices!
The answer is Macrophages. White blood cells also the leukocytes are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the bone marrow known as the hematopoietic stem cells. Macrophages are important cells of the immune system that are formed in response to an infection or accumulating damaged or dead cells. They are large, specialized cells that recognize, engulf and destroy target cells.
Answer:
The correct answer is - β-Hemolytic streptococci.
Explanation:
Beta hemolytic or complete hemolysis termed on the characteristic of the complete lysis of red cells due to the enzyme streptolysin, under the colonies. These are leads to the particular area to be transparent and lightened.
Beta hemolytic streptococci are one type of beta-hemolytic bacteria that are fall in group A streptococci, these bacteria produce an exotoxin enzyme. Bacitracin with trimethoprim-sulfamethoxazole disks is used to differentiate these streptococci.
Thus, the correct answer is - β-Hemolytic streptococci.