Examlex
The only extant seed plants that have swimming sperm are the ____.
Second-Leading Cause
A term used to denote the cause ranked as the second most common or significant factor contributing to a condition or event.
Cancer
A group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body, characterized by genetic mutations and often requiring complex treatments.
Radon-222
A radioactive gas that is a decay product of uranium, which can accumulate in buildings and increase the risk of lung cancer upon exposure.
Underground Deposits
Natural accumulations of minerals, metals, or other geological resources that are located beneath the Earth's surface, often requiring mining to extract.
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