<span>The macrophage is the cell responsible for detecting, engulfing and destroying pathogens and apoptotic cells. These cells process and present antigens (foreign materials) to immunocompetent cells and thus they are the key mediators in the development of all immune reactions.</span>
Answer:
The image has your answer :)
Explanation:
When the nurse gives you a shot, the Vaccine release white blood cells that fights flu viruses, you can stay happy and healthy!
Mitochondria is the 'factory' or the 'powerhouse' of the cell! I've just been learning about them too!
Boys need 2,400 to 3,200 a day, while girls need 1,800 to 2,400 a day.
Hope this helps!