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Which statement is true?

A Abscisic acid regulates water loss in plants by making plants close their stomata during hot weather.

B Abscisic acid regulates dormancy in plants by activating plant growth during cold weather.

C Abscisic acid regulates water loss in plants by making plants close their stomata during cold weather.

D Abscisic acid regulates dormancy in plants by suspending plant growth during hot weather.

Sagot :

Answer: C. Abscisic acid regulates water loss in plants by making plants close their stomata during hot weather.

Explanation:

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The statements that are true concerning abscisic acid are:

Abscisic acid regulates water loss in plants by making plants close their stomata during hot weather. Option A

Abscisic acid regulates dormancy in plants by suspending plant growth during hot weather. Option B.

Abscisic acid is a plant hormone that is produced in mature green leaves, fruits and root caps.

  • It serves the following functions to the plant:
  • It suppresses the growth of buds,
  • It induces seed dormancy. This is important when the environmental conditions are unfavourable ( during hot weather).
  • It controls the opening and closing  of stomata. This is important during periods of water shortage as it helps prevent water loss by its action on the stomata.

The effect of abscisic acid enables the plant to withstand severe environmental conditions. Therefore options A and B are both correct.

Learn more here:

https://brainly.com/question/24336466

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