Water is a polar molecule because its opposite ends have opposite electric charges.
<em>When water is abundant:</em>
-Temporal regulation of stomata is used:
Open during the day
Closed at night
- At night, there is no photosynthesis, so no demand for CO2 inside the leaf.
- Sunny day = demand for CO2 in leaf is high = stomata wide open.
- As there is plenty of water, plant trades water loss for photosynthesis products.
- If the leaf's CO2 concentration is low, the stomata will stay open to continue fueling photosynthesis.
- High temperatures will also signal stomata to close.
- When limited water is available in the soil, plants try to prevent water loss.
My Answer: <span> lower than terrestrial planet densities, lower than the density of rock.
Hope I helped! :D
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<em><u>what is dormancy:
</u></em><em>it is the stage before seed germination in which no growth or development of seed takes place and they disperse.......
</em><em><u>advantage:
</u></em><em><u />this stage is necessary for the seed to get a suitable environment and conditions for germination...
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