Biology · Reproduction in Animals

Read the following paragraph and identify the set of words which would correctly fill the blanks in the given order. The fusion of male gamete ______ (i) and female gamete ________ (ii) results in the formation of ________ (iii) which divides repeatedly to give rise to a ball of cells. The cells begin to develop into tissues and organs of the body. This developing structure is called _______ (iv).