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Natural environment
Related to any physical feature of the earth's natural environment.
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Natural environment > Coral reefs 
apomorph
Natural environment; Coral reefs
A derived character differing from the ancestral condition.
sea cow
Natural environment; Coral reefs
A large, herbivorous aquatic mammal of the order Sirenia that contains two Recent families: Dugongidae for the genera Dugong (dugong, one species) and Hydrodamalis (Steller's sea ...
ancestral trait
Natural environment; Coral reefs
A trait shared by a group of organisms as a result of descent from a common ancestor.
telolecithal
Natural environment; Coral reefs
An egg cell in which the yolk is not evenly distibuted throughout the cytoplasm, but is concentrated in one location, and cleavage is incomplete, e.g., a bird egg.
Sub-categories
- Air (43)
- Atmosphere (59)
- Climate (1147)
- Climate change (10457)
- Coral reefs (23903)
- Deserts (738)
- Earthquake (7143)
- Flood (34)
- Forests (37)
- Grassland (35)
- Land mass (144)
- Landslide (66)
- Mountains (203)
- Plateau (39)
- Speleology (1857)
- Volcano (5852)
- Water (18527)