Examlex
The phrase "survival of the fittest" has often been used to describe the theory of natural selection.
Mood Disorders
Psychological disorders characterized by the elevation or lowering of a person's mood, such as bipolar disorder or major depression.
Opioid Abuse
The misuse of opioid drugs, including prescription painkillers and illicit substances like heroin, often leading to addiction, health problems, or overdose.
Bulimia Nervosa
An eating disorder characterized by episodes of binge eating followed by behaviors such as vomiting to prevent weight gain.
Substance Abuse
Engaging in harmful or dangerous activities involving psychoactive substances, including the use of alcohol and illegal drugs.
Q3: The most interior division of planet Earth
Q13: The asthenosphere is the outer layer of
Q44: The newly-formed Earth's atmosphere was very different
Q47: The basic unit of heredity, _, is
Q48: You are hiking in the desert in
Q48: Sand deposits made by _ are well
Q48: Earth was a hot, barren, waterless planet
Q62: Areas of buried shield rock with younger
Q70: During the Grenville orogeny, an ocean basin
Q589: Most of our environmental problems exist because