Examlex
What could cause a canyon to be deeper upstream than downstream?
Brain Tumor
An abnormal growth of cells within the brain that can be cancerous (malignant) or non-cancerous (benign).
Vision
The ability to perceive the environment through light in the visible spectrum reflected by objects, processed by the eyes and interpreted by the brain.
Nerve Tissue
Specialized tissue that makes up the nervous system, transmitting signals between the brain and other parts of the body.
Neurons
Unique cells in the nervous system designed to transfer information using electrical and chemical signals.
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