(a) Name the method by which bread mould (Rhizopus fungus) reproduces. Is this method sexual or asexual?
(b) What is yeast? Describe the process of reproduction in yeast with the help of labelled diagrams.
(c) Name a tiny fresh-water animal which reproduces by the same method as that of yeast? What is this method known as?
(d) Name two marine organisms which also reproduce by the same method as yeast but form colonies.
(a) Spore formation; asexual reproduction.
(b) Yeast is tiny, unicellular non green plant which reproduces by budding. In yeast, first a bud appears on the outside of the cell wall. The nucleus of the parent yeast cell divides into two parts and one part of the nucleus moves into the bud. Ultimately, the bud separates off from the parent yeast cell and forms a new yeast cell.
(c) Hydra; Budding.
(d) Sponge and corals.