Characterstics that are transmitted from parents to offsprings during sexual reproduction show :

One of the following occurs reproductive system of flowering plants well as that of humans. This is :

In human males, the testes lie in the scrotal sacs outside the body because it helps in the :

The offspring formed as a result of sexual reproduction exhibits more variations because :

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. Organisms Y is a tiny animal having tentacles which live in water.

(a) What is organisms X?

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

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

(d) What are organisms Y?

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