Limestone Is Composed Primarily of ________

question 141

Multiple Choice

Limestone is composed primarily of ________.

• A) igneous material
• B) calcite
• C) tufa
• D) cations
• E) silt

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Definitions:

Slow Fibers

Slow fibers are a type of muscle fiber that contract slowly and are stamina-oriented, relying on aerobic metabolism for energy, making them resistant to fatigue.

Fast Fibers

Muscle fibers characterized by quick contractions and a capacity for rapid, forceful movements but have lower endurance compared to slow fibers.

Excitation-Contraction Coupling

The physiological process that links muscle fiber excitation to muscle contraction, primarily in skeletal and cardiac muscles.

T Tubules

Extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, aiding in the transmission of electrical impulses.