The Requirement for Vitamin D Increases with Age Because

question 21

Multiple Choice

The requirement for vitamin D increases with age because

• A) the kidneys lose their ability to convert it to the active form.
• B) the intestines lose their ability to absorb it.
• C) the skin's ability to make it from sunlight decreases.
• D) All of the answers are correct.

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Definitions:

Numerator

The top number in a fraction, indicating how many parts of a whole are considered.

T Test

A statistical test used to compare the means of two groups or to compare a sample mean to a known value, under the assumption that the sample comes from a normally distributed population.

Dependent Means

Refers to averages that are related or influence each other, typically within paired or matched samples in statistical analyses.

Sample Size

The number of observations or replicates included in a statistical sample.