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C. Short Answer Questions-II (2 marks each)

6. How are bacteria classified on basis of their shapes ?
7. What is the mode of reproduction in bacteria ?
8. Why are red tides caused and why are they harmful ?
9. Viruses and viroids differ in structure and the diseases they cause. How ?
10. Which class of kingdom fungi has both unicellular as well as multicellular
members ? When is a fungus called coprophilous ?

D. Short Answer Questions-I (3 marks each)

11. Who gave five kingdom classification ? What was the criteria used by him ?
12. What are the steps in the sexual cycle in kingdom fungi ?
13. Some symbiotic organisms are very good pollution indicators and composed
of a chlorophyllous and a non-chlorophyllous member. Describe them.

E. Long Answer Questions (5 marks each)

14. Some primitive relatives of animals live as predators or parasites and are
divided into four major groups. Elaborate.
15. Differentiate between various classes of kingdom Fungi on the basis of their
(i) Mycelium,
(ii) Types of spores and
(iii) Type of fruiting body. Also give two examples for each class.