_____ Is Currently the Single Greatest Cause of Preventable Death

question 30

Multiple Choice

_____ is currently the single greatest cause of preventable death in the U.S.

• A) Stress
• B) Smoking
• C) Obesity
• D) Chronic fatigue

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Definitions:

Fossil Record

The accumulation of evidences, such as bones, shells, or imprints, left by organisms in sedimentary rocks, providing a historical sequence of life on Earth.

Speciation

The evolutionary process by which populations evolve to become distinct species, typically through genetic isolation from other populations.

Isolated Population

A group of organisms that is physically or genetically separated from others of the same species, leading to distinct evolutionary paths.

Sexual Isolation

It refers to a type of prezygotic barrier where different species are isolated from each other by differences in mating rituals, timing, or other behaviors, preventing mating.