The diagram shows the movement of water through a plant.
Which sentence best describes how the loss of water from a plant's leaves helps the plant?

A. It causes water to move down into the root system.
B. It causes water to move into the plant's roots. C. It causes the plant's roots to grow toward water.
D. It causes limp guard cells to fill up with water.​

Answer:

Maybe B

Explanation:

The plants lose water through their leave by the process called transpiration. The loss of water causes water to move into the plant's roots. Thus, option B is correct.

Transpiration is the mechanism by which the plants lose their water through their stomatal pore to the atmosphere. It is best in summers to cool down the temperature of the plants.

The water from the roots, leaves, and stems is forced upwards to the leaves through the openings resulting in cooling. The process of transpiration in leaves is due to the Cohesion-Tension (C-T) mechanism.

This loss of water is beneficial as it goes into the atmosphere again through the water cycle and enters the root system of the plants.

Therefore, option B. the lost water causes the water to move into the roots again is correct.

Learn more about transpiration here:

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Tongue rolling is dominant over non-tongue rolling. If in a gene pool 60% of the alleles are dominant for tongue rolling, what percent of the population would have the non-tongue rolling phenotype?

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Describe how
To gain full marks you should refer to:
.
the enzyme and where the enzyme is produced
the products of digestion
any other chemicals involved.
(6 marks)
(6 Points)

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Studying the differences between fossils and modern organisms help scientists better understand the 
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A city has experienced an increase in vehicle traffic in the last few years. During this time, the city has also recorded an increase in air pollution.

Which solution should the city choose to best reduce air pollution in the coming years?
A.
Monitor the levels of air pollution during rush hour each day.
B.
Provide more public facilities for the disposal of motor oil used in vehicles.
C.
Encourage using public transportation rather than driving individual cars.
D.
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True or false : evolution occurs within the lifetime of living things.

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A. Evolution can occur over a weekend
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C Evolution occurs over hundreds of years
D. Evolution occurs over millions of years

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​

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