Biology, 18.04.2020 03:49 2020seogang
When plants are stressed by dry conditions, they secrete the hormone abscisic acid (ABA) and in response the stomata close, even in the light. ABA is known to trigger the release of calcium ions that serve as second messengers in the guard cells and cause massive opening of potassium (K ) channels. Which of the following would be part of the mechanism by which ABA triggers stomata to close?
A. K+ ions flow out of guard cells and water moves into guard cells in response
B. K+ ions flow into guard cells and water moves into guard cells in response
C. K+ ions flow out of guard cells and water moves out of guard cells in response
D. K+ ions flow into guard cells and water moves out of guard cells in response
Answers: 1
Biology, 21.06.2019 16:20
German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu , and curved wings, cv, are recessive to straight wings, cv . both traits are encoded by autosomal genes that are linked. a cockroach has genotype bu bu cv cv, and the genes are in repulsion. which set of genes will be found in the most common gametes produced by this cockroach?
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Biology, 21.06.2019 16:30
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Biology, 21.06.2019 18:30
Astudent conducts an experiment to determine how the amount of water given to a plant affects it growth what is the dependent variable for this experiment
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The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above
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When plants are stressed by dry conditions, they secrete the hormone abscisic acid (ABA) and in resp...
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