Cells that protect the body by engulfing foreign cells or producing antibodies are D. White blood cells.
The answer is amyloid beta. They clump together and form plaques. The formed plaque can block signals transmitted from one cell to another cell. In addition, the plaque can cause swelling, especially in the area where it is formed. It can also digest the disabled cells. This type of plaque is very common among patients with Alzheimer's Disease.
A, an example is our sun :)
Yeah the answer above me makes sense...
