Life First Evolved on Earth _______ Years Ago

question 76

Multiple Choice

Life first evolved on Earth _______ years ago.

• A) more than 5 billion
• B) between 3 billion and 5 billion
• C) between 2 billion and 3 billion
• D) between 1 billion and 2 billion
• E) less than 1 billion

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Definitions:

Deep Vein Thrombosis

A blood clot that forms in a deep vein, usually in the legs, which can become life-threatening if it dislodges and travels to the lungs.

Mobile Compression Device

A portable device used to apply pressure to limbs to enhance circulation and prevent blood clots.

D-Dimer

A blood test that measures a substance released when a blood clot dissolves; it's used to help diagnose or rule out thrombosis.

Osteoporosis

A medical condition characterized by the weakening of bones, making them fragile and more likely to break.