The Phylogeny Below Shows: (Left to Right) Zoonar/K

question 82

Multiple Choice

The phylogeny below shows: (left to right) Zoonar/K. Jorgensen/age fotostock; S Sailer/A Sailer/age fotostock; J & C Sohns/age fotostock; Michael Dick/ Animals Animals-Earth Scenes; FLPA/Jurgen & Christi/age fotostock; Yellow Dog Productions/Getty Images.

• A)orangutans and gorillas are more closely related than humans and gorillas.
• B)humans and gorillas are more closely related than orangutans and gorillas.
• C)the gorilla is the most recent common ancestor to bonobos, chimps, and humans.
• D)the orangutan is the most recent common ancestor of all great apes.
• E)all great apes walk with an upright gait.

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Definitions:

Variance

A statistical measure of the dispersion of a set of data points in relation to their mean.

Mean

The arithmetic average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Variance

A measure of the dispersion or spread of a set of data points around their mean value.

Degrees of Freedom

The number of independent values or quantities that can vary in the calculation of a statistic, often necessary for assessing the significance of the statistic.