Draw a diagram of human reproductive organs and label sperm duct, penis and testis .

Draw and describe the male reproductive organs in humans.

How does the embryo get nourishment inside the mother’s body?

Two very small organisms X and Y both reproduce by the method of budding. Organism X is industrially very important because it is used in making alcohol from sugar. It is also used in making bread. Organism Y is a tiny animal having tentacles which lives in water.

(a) What is organism X?

(b) Name the process in which X converts sugar into alcohol.

(c) To which class of organism does X belong?

(d) What is organism Y?

(e) Out of X and Y, which organism is multicellular and which one is unicellular?

How are the young ones of frogs and other aquatic animals produced?