Name three groups of plants that bear archegonia. Briefly describe the
life cycle of any one of them.
When and where does reduction division take place in the life cycle of a
liverwort, a moss, a fern, a gymnosperm and an angiosperm?
Give a brief account of viruses with respect to their structure and nature of
genetic material. Also name four common viral diseases.
Give a comparative account of the classes of Kingdom Fungi under the following
(i) mode of nutrition
(ii) mode of reproduction
Plants are autotrophic. Can you think of some plants that are partially
heterotrophic?
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