Examlex
You have noticed changes in your ability to walk. The doctor informs you that your myelin is being replaced with a hard fibrous tissue. What disorder does the doctor suspect you may have?
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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