Examlex
If the participants in one treatment condition are noticeably older than the participants in another treatment condition, then participant age is a confounding variable.
Alexander Fleming
The Scottish bacteriologist known for discovering the antibiotic substance penicillin in 1928, revolutionizing medical treatment of bacterial infections.
Iron-Sulfur World
A theory regarding the origin of life on Earth, suggesting that life began at hydrothermal vents, where iron and sulfur compounds provided the energy and catalytic surfaces for the synthesis of organic molecules.
Hydrothermal Vents
Fissures in the deep ocean floor that release hot water and inorganic compounds.
Organic Molecules
Chemical compounds that contain carbon and are found in all living organisms, essential for life.
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Q56: Explain the difference between a no-treatment control