The Gaia Theory

question 48

Multiple Choice

The Gaia Theory

• A) sees human beings as an integral part of the planetary ecosystem.
• B) is a mystical belief that the Earth itself is alive and takes the form of an ancient goddess.
• C) has been discredited by recent scientific research.
• D) all of the above.

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Definitions:

Osteoclast Activity

The process involving osteoclast cells breaking down bone tissue, releasing calcium and phosphate into the blood.

Epiphyseal Plate

Also known as the growth plate, it is a hyaline cartilage plate in the metaphysis at each end of a long bone, where bone growth occurs in children and adolescents.

Medullary Cavity

The central cavity of bone shafts where red bone marrow and/or yellow bone marrow (fat) is stored.

Osteoporosis

A condition characterized by weakened bones that are more prone to fracture, often resulting from hormonal changes or deficiency of calcium or vitamin D.