Examlex
On average, the stars in elliptical galaxies are older than the stars in spiral galaxies.
Comparative Anatomy
The study of similarities and differences in the anatomy of different species, often to understand evolutionary relationships.
Continental Drift
The gradual movement of the continents across the earth's surface through geological time.
Primitive Plants
Early-evolving plant species that lack complex structures such as flowers and seeds, including mosses, liverworts, and ferns, often found in damp, shaded environments.
Early Reptiles
Refers to the first reptiles that appeared on Earth, marking significant evolutionary developments during the Carboniferous period.
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