chloebaby8
26.10.2019 •
Biology
To be classified as a fossil, the organism must have lived and died more than 10,000 years ago. true false
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Ответ:
Ответ:
I, II, III and IV.
Explanation:
Drought tolerance is the ability of the plant to survive and adapt to drought or arid conditions.
When plants encounter drought, they produce dress hormone called abssisic acid. These hormone then activate the cells receptors and the receptors cause some changes in the plants.
The receptor causes the guard cells of the stomata to close to reduce and cause cessation of plant growth to in order to reduce water consumption of plant.
Once the stomata is closed, there is decrease in transpiration which reduce water loss but still allow carbondioxide to enter.
Examples of drought tolerant plants are agaves, wallflower, lantana, lithops, portulaca e.t.c.