When a fertilized egg is implanted outside the uterus, usually in a fallopian tube, this causes which dangerous condition? a. miscarriage b. ectopic pregnancy c. preeclampsia d. stillbirth?

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

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.

where is the scientific experiment?