What are the hair-like extensions used like oars to propel the protists to nutrients?

Cilia

Explanation:

Cilia are the hair-like extensions used like oars to propel protists.  They move in a wave-like pattern to move the protist.  

protocol for imps extraction focusing on membrane protein extraction, solubilisation, and purification.

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.