Mimosa Plants Spread Their Leaflets During the Day and Fold

question 11

Multiple Choice

Mimosa plants spread their leaflets during the day and fold them at night.You decide to design an experiment to test whether Mimosa's leaf movements are controlled by a biological clock.Which of the following experiments would be the best test of your hypothesis?

• A)Putting the plant in a dark closet at nightfall.Check on the plant in the morning about 10 hours later,while the plant is still in the closet.If the leaves are open,a biological clock is indicated.
• B)Growing the plant indoors and turning the lights on in the middle of the night.If a biological clock is controlling leaf movement,the leaves will open.
• C)Subjecting the plant to a flash of red light in the middle of the night.If the leaves open at the usual time the next morning,a biological clock mechanism is ruled out.
• D)Putting the plant in a dark closet in the middle of the day.If the leaves close,a biological clock mechanism is ruled out.

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Definitions:

Ideological Concerns

Issues or debates that arise from deeply held beliefs or values within a society or political system.

Original Jurisdiction

The authority of a court to hear a case for the first time, as opposed to appellate jurisdiction.

Stare Decisis

The legal principle of determining points in litigation according to precedent.

Writ of Certiorari

An order by a higher court directing a lower court to deliver the records of a case for review, often used by the Supreme Court to choose the cases it will hear.