Elements of Biology: A Practical Text-book Correlating Botany, Zoology, and Human PhysiologyAmerican Book Company, 1907 - 445 páginas |
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Página 6
... contain such material as has been found by most teachers of first - year biology to be sufficient for a well- rounded course in the first year of the high school . In selecting material , the syllabuses for elementary botany , zoology ...
... contain such material as has been found by most teachers of first - year biology to be sufficient for a well- rounded course in the first year of the high school . In selecting material , the syllabuses for elementary botany , zoology ...
Página 17
... containing it turns black upon being heated in a flame . Experiment . Heat separately on a tin plate some leaves , sticks of wood , gravel , sand , and rich black earth . Place them over a hot flame for some minutes Which of the above ...
... containing it turns black upon being heated in a flame . Experiment . Heat separately on a tin plate some leaves , sticks of wood , gravel , sand , and rich black earth . Place them over a hot flame for some minutes Which of the above ...
Página 20
... containing a certain proportion of carbon , hydrogen , and oxygen ; organic fats and oils , which contain chiefly hydrogen and carbon ; and nitrogenous , or proteid substances , which contain nitrogen in addi- tion to the above ...
... containing a certain proportion of carbon , hydrogen , and oxygen ; organic fats and oils , which contain chiefly hydrogen and carbon ; and nitrogenous , or proteid substances , which contain nitrogen in addi- tion to the above ...
Página 21
... contain grape sugar in a test tube containing Fehling's solution and allowing the mixture to remain over night in a moderately warm room . If grape sugar is present , a red deposit or precipitate ( copper oxide ) will be found in the ...
... contain grape sugar in a test tube containing Fehling's solution and allowing the mixture to remain over night in a moderately warm room . If grape sugar is present , a red deposit or precipitate ( copper oxide ) will be found in the ...
Página 22
... contain the element nitrogen in addition to carbon , hydrogen , and oxygen of the car- bohydrates and hydrocarbons . They include some of the most com- plex substances known to the chemist , and as we shall see , have a chemical ...
... contain the element nitrogen in addition to carbon , hydrogen , and oxygen of the car- bohydrates and hydrocarbons . They include some of the most com- plex substances known to the chemist , and as we shall see , have a chemical ...
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adapted alcohol American Book Company amount animal arteries bacteria bean beetle birds blood vessels bone Botany breathing called carbon dioxide cause cells cerebrum color colorless corpuscles containing corn corpuscles cotyledons covered crayfish developed dicotyledonous digestive eggs endosperm example experiment fibers fish flower fluid frog fruit germinate gills glands grain green grow growth heart heat Hunter and Valentine insects intestine kidney known laboratory large number larvæ layer leaf leaves legs living lungs Manual means membrane microscope mollusks monocotyledon mouth muscles muscular nerve nervous system nitrogen Notice organs outer ovary oxidation oxygen parasitic pass Physiology pistil pollen proteid protoplasm root hairs seedlings seeds seen shell side skeleton skin soil species sporangium spores stamens starch stem stomach stomata structure substance sugar surface teeth temperature tiny tion tissues tree veins vertebral vertebral column walls wings worm Zoology