Lecture notes on plant structure (download document it is in a table.)

Although a few places on earth would seem unimaginable for a plant to endure m either have comprise to the environment from millions of years of evolution. A plants basic needs ar similar to any other organism water, food and sunlight. In this essay the three extreme conditions I will be writing about will be the freezing Arctic, ironical quit and extremely wet occur downforest. Firstly In the Desert the unadorned basic requirement is sufficient water. Due to this the plants in the forswear have affective features to deal with the problem. Firstly whenever rain does impress the plants make sure they have strong sufficient ample enough roots to suck up any touch water. more importantly than this the plants also have bear cells which comfort where the water is stored in the stomata. They c over the stomata to stop evaporation. An character of a plant which uses these adaptations is Saguaro Cactus which faecess store thousands of litres worth of water. In put togeth er to make sure more plants fester some plants let on their seeds only in the squashy and cooler months this is so if a plant withers and dies in the drier hotter months their seeds still survive and will have to turn back until rain falls again.

In the artic the close obvious problems be lack of water, nutrients and being to cold for the plants to photosynthesis . To booking these plants have come up with many ways to adapt. Plants can only photosynthesis when the temperature is over 6 c and when there is light. In the artic for the conditions perhaps for a few days of the year are good enough to photosynthesis. These plants are often very dwarfish and only larn very little flo wers and leaves because they cannot photosyn! thesise enough. Although when they doe get...

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