Consider This Data Set: 5, 6, 7, 11, and 15

question 143

Multiple Choice

Consider this data set: 5, 6, 7, 11, and 15. Which of the following values equals its mean?

• A) 7.0
• B) 7.1
• C) 8.1
• D) 8.8

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Definitions:

Endoderm

The innermost layer of cells or tissue of an embryo in early development, which gives rise to the lining of the digestive and respiratory systems.

Radial Symmetry

A body plan in which any section through the mouth and down the length of the body divides the body into similar halves. Jellyfish and other cnidarians have radial symmetry. Compare with bilateral symmetry.

Protostomes

A group within the animal kingdom that includes organisms in which the mouth develops from the primary embryonic opening.

Radial Cleavage

A type of embryonic development in deuterostomes where the planes of cell division are either parallel or perpendicular to the vertical axis of the embryo, resulting in the cells being positioned directly above or beside each other.