If an organism's diploid number is 12, its haploid number is

The prefix di- (as seen in the word diploid) means that it is 2 (aka double) of haploid. All you have to do is divide 12 by 2

12/2 = 6

If an organism's diploid number is 12, its haploid number is 6

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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.

carbon atoms, hydrogen, oxygen, and nitrogen.