Examlex
In reptiles,the outer layer of the epidermis,the stratum __________ is very thick and modified into scales and other structures.
Minerals
Naturally occurring, inorganic substances with a definite chemical composition and crystalline structure.
Charophytes
A group of green algae thought to be the closest relatives of land plants.
Probable Ancestors
The most likely predecessors or early forms of living organisms from which others have descended.
Algae
Photosynthetic, predominantly aquatic organisms, ranging from single-celled forms to giant kelps, that are not classified as plants, animals, or fungi.
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