The <em>white blood cells</em> are the cells present in the blood that are responsible for controlling the spread of infection.
The white blood cells are produced by the bone marrow and, they circulate along with the blood throughout the body and combat the foreign agents and hence, provide immunity.
Whenever there is an <em>infection</em> in the body, the count of WBCs in the blood <em>increases</em> because their production by the bone marrow increases in order to control the infection.
I think the answer would be white blood cells because the white blood cells are trying to fight the bacteria off. That’s what I think. Hope this helped
DNA sequences similarity among various organisms may be used to establish evolutionary relationship among living organisms. ... Organisms or animals whose DNA sequences are similar share common evolutionary origin.
Antibiotics fight bacterial infections either by killing bacteria or slowing and suspending its growth. They do this by: attacking the wall or coating surrounding bacteria. interfering with bacteria reproduction.