Which one of the following statements are correct?

(I) Entamoeba histolytica is a protozoan parasite in large intestine of human which causes amoebiasis (amoebic dysentery) and fruitflies act as mechanical carriers for spread of this disease.

(II) Wuchereria bancrofti and W. Malayi causes elephantiasis or filariasis.

(III) Many fungi belong to genera microsporum, trichophyton and Epidermophyton are responsible for ringworms. Heat and mosture conditions help these fungi to grow in groin or between toes.

(IV) Fishes like gambusia feed on the mosquito larvae in ponds.

(V) The overall ability of host of fight the disease is called immunity

(VI) In cellular barriers of acquired immunity, certain types of WBC of our body like polymorpho- nuclear leukocyte and monocytes and natural killer in body as well as macrophages in tissue can phagocytose and destroy microbe.

(VII) The secondary response due to encounter with same pathogen is called anamestic.

(VIII) The secondary response due to encounter with same pathogen is called anamestic.

(IX) Two types of lymphocyte present in our body are B- and T- lymphocyte.

(X) T lymphocyte produces army of protein in response to pathogen called antibodies.

(XI) Each antibody molecule ahs 2 light chains and 2 heavy chains and hence antibody is represented as H 2 L 2.

(XII) The immune response mediated by B- lymphocyte is called humoral immune response and by T- lymphocyte is called cell – mediated response.

Choose the correct option given below.