Transpiration produces a tension or pull on the water in the xylem vessels by the leaves. Water molecules are cohesive so water is pulled through the plant .
There is an increasing levels of biological contaminant
procedures because they are necessary in preventing spores from becoming as
dormant and that they are also responsible for preventing bacterial infections
and as well as resistance of viruses. The level of biological contaminant
necessary to complete experiments is to have a biological level of bio safety
level 1 when there is a need of minimal potential hazard to the ones conducting
the experiment.
Answer:
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Answer: The answer is B
Explanation: The ratio decreases from 1.6 to 1.2 because fewer stomata are needed at higher CO, concentrations
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Elliptical
Earth's orbit is not a perfect circle. It is elliptical, or slightly oval-shaped. This means there is one point in the orbit where Earth is closest to the Sun, and another where Earth is farthest from the Sun.