The Event in Human History That Changed the Natural Balance

question 27

Multiple Choice

The event in human history that changed the natural balance of the carbon cycle was the

• A) Industrial Revolution.
• B) Agricultural Revolution.
• C) evolution of primates.
• D) invention of farming.
• E) invention of the telegraph.

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Definitions:

Cardiac Muscle

Muscle tissue found only in the heart, characterized by its ability to contract involuntarily and rhythmically.

Tetanic Contractions

Sustained muscle contractions that occur when the muscles do not relax between stimuli, leading to a smooth and steady contraction.

Depolarization

The process in which a cell's membrane potential becomes less negative, leading towards an action potential in nerve and muscle cells.

Heart Rate

is the number of heartbeats per unit of time, usually per minute, indicating cardiovascular fitness and overall health.