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(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) The bread mould reproduces by spore formation. It is an asexual mode of reproduction.
(b) Yeast is a microorganism which is classified as a fungus. It is eukaryotic and reproduces by budding.
In yeast, at first, bud appears outside its cell wall. Immediately the nucleus of the parent cell divides itself into two parts in such a way that one of its parts moves into the bud. Finally, the bud detaches itself from the parent yeast to form a new yeast.

(c) Hydra is a tiny fresh-water animal which reproduces by the same method as that of yeast. This method is known as budding.
(d) Sponges and Corals are the two marine organisms which also reproduce by the same method (budding) as yeast but form colonies.
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