Station 1: At this station you will find M&M's. If these M&M's were in front of you, would you be able to separate them out by color? Is this
mixture homogenous or heterogenous? Why or why not?

heterogenous

Explanation:

because you can separate it physically

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

"d.) carbon dioxide and hydrogen sulfide"