Which of these is an example of a chemical change? A. Setting a piece of paper on fire
B. Melting iron into a liquid
C. Dissolving salt in water
D. Breaking a piece of plastic in half
SUBMIT

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.

the animal that would be cutest if scaled down to the size of a cat? elephant

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high