(From a Science Quiz That Appeared in the Weekly Magazine

question 94

Multiple Choice

(From a science quiz that appeared in the weekly magazine The Economist.) Economic history is easier to write than the history of the universe. Nevertheless, most cosmologists now think that when the universe was formed,

• A)first there was inflation, which caused the Big Bang, then recession.
• B)first there was a Big Bang and then inflation (of space)which caused recession (of all matter, away from the Big Bang).
• C)first there was a Big Bang. There has not been any inflation yet, but if it comes it will cause recession.

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Definitions:

Osteocytes

Bone cells integral to the structure and function of bone, acting as strain sensors.

Hydroxyapatites

Minerals composed of calcium phosphate that form the primary structural component of bone and teeth.

Epiphyseal Plate

A cartilage plate in the long bones where lengthwise growth occurs in children and adolescents.

Hyaline

A term often used to describe cartilage that is translucent and glass-like, found in joints and respiratory passages.