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enot [183]
3 years ago
7

Anyone know the answer to this question?

Biology
1 answer:
disa [49]3 years ago
7 0

Answer:

1. hydrogen; 2

2. it means two strands of DNA twisted around each other like a winding staircase

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When plants are stressed by dry conditions, they secrete the hormone abscisic acid (ABA) and in response the stomata close, even
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Answer:

C. K+ ions flow out the the guard cells and water flows out the cells.

Explanation:

The turgidity of the guard cells allows the opening and closing of the stomata. This is especially necessary when it comes to water conservation in plants. In order for the cells to become turgid or flaccid, there must be the influx and out ward movement of water via osmosis.

In order for this the occur the osmotic pressure of the cellular environment must change and this is done by changing the solute concentration.

The pumping in of K+ ions out the cell allows the solute concentration to decrease and this in turn encourages the movement of water across a concentration gradient through a semi-permiable membrane.

The water leaves the guard cells and they become flaccid. This causes the stomata to be covered.

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•] The definition of limiting factor; anything that constrains a population's size and slows or stops it from growing.
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I assume that you were trying to say what is 25678 divided by 1345.

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