| Directions : 36 - 40 |
| Read the passage given below and answer the following questions. |
| Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocotyledons. Water is a regular mode of transport for the male gametes among the lower plant groups such as algae, bryophytes and pteridophytes. It is believed, particularly for some bryophytes and pteridophytes, that their retribution is limited because of the need for water for the transport of male gametes and fertilisation. Some examples of water pollinated plants are Vallisneria, Ceratophylum and Hydrilla which grow in fresh water and several marine Sea-grasses such as Zostera. Not all aquatic plants use water for pollination. In a majority of aquatic plants such as lotus, water hyacinth and water lily, the flowers emerge above the level of water and are pollinated by insects or wind as in most of the land plants. |
A) 80 genera.
B) 60 genera.
C) 30 genera.
D) 40 genera.
Correct Answer: C
Solution :
30 genera.
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