-The Figure Above Shows the Cross Section of a Root

question 91

Multiple Choice

-The figure above shows the cross section of a root grown under different conditions. Explain what is happening in picture B?

• A)With no oxygen, the root has died.
• B)The root is infested with parasites that are eating the root.
• C)Root cells produce absicic acid to increase tolerance to low oxygen.
• D)Root cells produce cytokinins to promote movement of nutrients to roots.
• E)Low oxygen stimulates production of ethylene which causes apoptosis in some cells of the root cortex.

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Definitions:

Construct Validity

The extent to which an assessment accurately measures what it is supposed to measure.

Criterion Validity

The extent to which a measure is related to an outcome. It assesses whether a test reflects a certain set of abilities by correlating test results with a criterion measure.

Face Validity

The extent to which a test appears to measure what it is supposed to measure at face value.

Naturalist Intelligence

A type of intelligence described by Howard Gardner, involving sensitivity to and understanding of the natural world and living things.