Elements of Biology: A Practical Text-book Correlating Botany, Zoology, and Human PhysiologyAmerican Book Company, 1907 - 445 páginas |
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Términos y frases comunes
adapted alcohol American Book Company amount animals arteries auricle bacteria bean birds blood vessels body cavity bone brain breathing called capillaries carbon dioxide caused cerebrum color colorless corpuscles containing corn cotyledons crustaceans digestive disease dorsal eggs especially example experiment fats fibers fish flower fluid food tube frog fruit function germinate gills glands grain growth heart heat Hunter and Valentine insects intestine kidney known laboratory lacteals large number larvæ layer leaf leaves legs liver living lungs means membrane mouth movement muscles muscular nerve cells nervous system nitrogen Notice organs outer ovary oxidation oxygen pass Physiology plant poison pollen proteid protoplasm respiration root hairs seeds seen shell side skeleton skin soil spinal spores stamens starch stem stomach stomata structure substance sugar surface sympathetic nervous system teeth temperature tiny tion tissues tree veins ventricle vertebral vertebral column walls young Zoology