Abscisic acid is an important signal, transported from roots to the stem and leaves during times of water stress, that prevents

A. additional auxin production.
B. ethylene buildup in the stems.
C. leaf drop.
D. phototropism.
E. stomatal opening.


E. stomatal opening.

Biology & Microbiology

You might also like to view...

Which of these hormones enables us to excrete concentrated urine?

A) Renal diluting hormone B) Homeostatic hormone C) Diuretic hormone D) ADH E) Aldosterone

Biology & Microbiology

How does water move so rapidly across plant cell membranes?

What will be an ideal response?

Biology & Microbiology

What percentage of alleles will be shared by certain siblings due to the law of independent assortment?

A) Monozygotic twins will have no alleles in common. B) Monozygotic twins will have about 50% of their alleles in common. C) Two typical siblings will have about 50% of their alleles in common. D) Dizygotic twins will have 100% of their alleles in common.

Biology & Microbiology

What is the portion of a dicot seedling below the cotyledons called?

A. Subcotyl B. Hypocotyl C. Epicotyl D. Internode E. Plumule

Biology & Microbiology