Many Years Ago It Was Taught That Plants And Animals Were Composed Of Different Materials: Plants, Of A Chemical Substance Of Three Elements,- Carbon, Hydrogen, And Oxygen; Animals Of One Of Four Elements, Nitrogen Being Added To The Other Three.

-Asa Gray

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Many Years Ago It Was Taught That

Asa Gray

Many Years Ago It Was Taught That Plants And Animals Were Composed Of Different Materials: Plants, Of A Chemical Substance Of Three Elements,- Carbon, Hydrogen, And Oxygen; Animals Of One Of Four Elements, Nitrogen Being Added To The Other Three.

Topic

Animal

Oxygen

Years

It Was Always Understood That Plants And Animals, Though Completely Contrasted In Their Higher Representatives, Approached Each Other Very Closely In Their Lower And Simpler Forms. But They Were Believed Not To Blend.

Animal

Plant

Form