Cells at the Top of a Tree Have a Higher

question 112

Multiple Choice

Cells at the top of a tree have a higher concentration of sugars than cells at the bottom.How might this fact assist a tree in moving water upward from its roots?

• A)Cells with high concentrations of sugar are more dense.As these cells migrate downwards,cells containing fresh water are able to migrate upwards.
• B)Water is pushed upwards by osmostic pressure.
• C)It doesn't.In fact,water makes it to the top of a tree because that is where the water molecules are being evaporated.
• D)Fresh water is drawn upwards to the sugar containing cells by way of dipole-dipole molecular interactions.

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Definitions:

Correlation Coefficient

A numerical measure that indicates the extent to which two variables fluctuate together, signifying the strength and direction of their relationship.

Standard Deviation

A statistical measure of the dispersion or variability within a set of data, indicating how spread out the numbers are from the mean.

Validity

The degree to which a tool, test, or study accurately measures or reflects what it is intended to measure.

Emotional Intelligence

The ability to recognize, understand, manage, and use one’s own emotions and those of others in positive ways.