Examlex
Uterine contractions are 15 to 20 minutes apart and last up to a minute during the beginning of the
Cell
The basic structural, functional, and biological unit of all living organisms, acting as the building block of life.
Extinction Rates
The rate at which species disappear from Earth, often accelerated by human activities, leading to biodiversity loss.
Mass Extinction
Significant and widespread loss of species across multiple ecosystems within a short geological period, often due to catastrophic events or human activities.
Range of Tolerance
The range of environmental conditions that are tolerable for survival in a species.
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