Answer:idk im so sorry if only there where a way to give back the points im sorry!
The answer is D. An irritant that because embedded in the mantle
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:
B. the flow of energy from one organisms in the ecosystem
Explanation:
that should be the right one :)
