The species (man, housefly, mango, wheat, dog, cat, lion, tiger, potato, brinjal, makoi and leopard) given here belong to how many different families?

The correct option is D 7
The families of species given are:

1. Felidae(cat,lion,tiger and leopard)

2 .Homonidae(man)

3. Muscidae(housefly)

4. Anacardiaceae(mango)

5 .Poaceae(wheat)

6. Solanaceae(potato,brinjal,makoi)

7 .Canidae(dog)

So the correct option is '7'.