The Changes in the Patterns of Physical Growth and Development

question 53

Multiple Choice

The changes in the patterns of physical growth and development that are known as the secular trend are most likely caused by which of the following?

• A) An increasingly sexualized society
• B) Increased levels of demand and stress placed upon children and adolescents
• C) Improvements in nutrition and health care
• D) Cultural values that favor a thin, angular body image

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Definitions:

Exocytosis

A cellular process where vesicles within the cell transport materials to the cell membrane for release into the extracellular environment.

Centrosome

An organelle near the nucleus in the cell cytoplasm, playing a key role in cell cycle progression and mitosis as the main microtubule organizing center.

Membrane Potential

The voltage difference across a cell's plasma membrane, crucial for the conduction of electrical impulses in nerve, muscle cells, and for cellular homeostasis.

Ion Concentrations

The measure of the amount of specific ions in a solution, crucial for processes such as nerve impulse transmission and muscle contraction.