All but One of the Following Experiments Would Allow a Scientist

question 11

Multiple Choice

All but one of the following experiments would allow a scientist to discover if the phenotype of an organism would be affected by environmental changes; choose the experiment that would not show environmental effects.

• A) Cuttings are taken from an English Ivy plant and are then grown in soils with different pH levels.
• B) A Siamese cat has patches of fur removed from its hips and an ice pack is secured over the area.
• C) A mouse with the genetic disorder phenylketonuria (PKU) is fed a diet low in phenylalanine for a year and then changed to a diet rich in the same molecule.
• D) A group of mice that show the same dominant trait are fed a variety of diets to determine if they show different body types.
• E) A hydrangea is grown for one year in aluminum poor soil and then grown for one year in aluminum rich soil.

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Definitions:

Law of Conservation

A principle stating that in a closed system, mass (in classical physics) or mass and energy (in quantum physics), cannot be created or destroyed, but only transformed or transferred.

Mass

Mass is a property of physical objects that quantifies the amount of matter within them, offering resistance to acceleration when a force is applied.

Mercury (II) Oxide

A red or orange solid compound that is formed by the oxidation of mercury, used in the production of mercury as it decomposes to mercury and oxygen when heated.

Sealed System

A closed environment where no matter is allowed to enter or leave, typically used in reference to thermodynamic systems.