You know about the nature of life, the forms it takes, and the way living organisms work. You have a reasonable chance of identifying a plant or creature, even from a fragment.

• Novice: High school.

•• Practiced: College student.

••• Competent: Grad student.

•••• Expert: Professor.

••••• Master: Research fellow.

Specialties: Botany, Zoology, Ecology, Paleontology.

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