Examlex
A beta particle is another name for a(n)__________.
Cladograms
A diagram used in cladistics which shows relations among organisms.
Molecular Clocks
Methods used to estimate the time of evolutionary events based on the hypothesis that genetic mutations accumulate at a predictable rate over time.
Fishlike Vertebrates
Aquatic animals featuring a backbone, including both true fish and fish-shaped species with similar living habitats and structures.
Million Years
A time unit used in geology and astronomy to describe extremely long periods, typically used in the context of the age of the earth or the distance of cosmological objects.
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