<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.
Answer:
4 mass extinctions
Explanation:
as there are huge drops in the graphs
at 440,390,260,50
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the seasons in the northern hemisphere are the opposite of those in the southern hemisphere. this means that Argentina winter ans Australia winter begins in June the winter solstice in the southern hemisphere is June 20th or June 21 while the summer solstice the longest day of the year is December 21 or 22
Answer:
Intrusive rocks are coarse-grained in texture and crystallise slowly from magma deep in the earth's crust. Extrusive rocks are fine-grained in texture and crystallise quickly from lava on or near the earth's surface. The mineralogy determines the type of rock.
