Evolution of Australian Biota Essay

1202 Words Jun 1st, 2013 5 Pages
Biology Assessment Task Three:
Evolution of the Australian Biota
By Delina Stevenson

Identify features of flowers of native species of angiosperms that may be adaptations for wind, insect, bird and mammal pollination.

- Wind: Wind-pollinated plants don't depend on the ability to attract birds or insects, so their flowers tend to be small, drab, unscented and non-prominent. Wind pollinated flowers are specially adapted to be able to make use of even slight air currents. They tend to have lots of small flowers with long filaments and pistils. Anthers and stigmata often project from the flower in order to be exposed to the wind so that pollen can be sent out and received easily.

- Insect: Flowers use nectar as a food
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The fruit is digested, but the | |
| |seeds pass through the animal, and are | |
| |dropped in other locations. | |
|Water |Many aquatic plants and plants that live |Coconut |
| |near water have seeds that can float, and | |
| |are carried by water. Plants living along | |
| |that float downstream and therefore become | |
| |germinated at new sites. The size of the | |
| |seed is not a factor in determining whether | |
| |or not a seed can float. | |

Explain how the

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