Iam a circulating cell involved in ige type allergic reactions. i am a mediator of allergic reactions because i can release granules that contain heparin and histamines. i am a:

The correct answer is basophil.

The basophils are a kind of white blood cell that appears in various specific types of inflammatory responses, mainly those, which leads to allergic reactions. The basophils comprise anticoagulant heparin that inhibits the blood from coagulating or coating too briskly. They also comprise of the vasodilator histamine that encourages the flow of blood to the tissues.  

d

explanation:

the higher the instrument the better

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic