A Course of Elementary Instruction in Practical BiologyMacmillan and Company, 1877 - 279 sider |
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Side 57
... fibres and constitute what is termed sclerenchyma . Their walls are very thick , and of a deep - brown colour ; but the thickening has taken place unequally , so as to leave short , obliquely directed , thin places , which look like ...
... fibres and constitute what is termed sclerenchyma . Their walls are very thick , and of a deep - brown colour ; but the thickening has taken place unequally , so as to leave short , obliquely directed , thin places , which look like ...
Side 58
... bundles containing scalari- form and spiral vessels . The outer layer investing each is chiefly formed of long hollow fibres with very thick . walls , and terminating in a point at each end 58 [ CHAP . ELEMENTARY BIOLOGY .
... bundles containing scalari- form and spiral vessels . The outer layer investing each is chiefly formed of long hollow fibres with very thick . walls , and terminating in a point at each end 58 [ CHAP . ELEMENTARY BIOLOGY .
Side 59
... fibres have oblique cleft - like clear spaces , produced by interruptions of the process of thickening in their walls . The vascular bundles , the green parenchyma , and the epidermis are continued into each pinnule of the frond . The ...
... fibres have oblique cleft - like clear spaces , produced by interruptions of the process of thickening in their walls . The vascular bundles , the green parenchyma , and the epidermis are continued into each pinnule of the frond . The ...
Side 60
... fibres are given off from its under surface , and attach the little plant , which is termed a prothallus or prothallium , to the surface on which it grows . The prothallus attains no higher development than this , and does not directly ...
... fibres are given off from its under surface , and attach the little plant , which is termed a prothallus or prothallium , to the surface on which it grows . The prothallus attains no higher development than this , and does not directly ...
Side 64
... fibres ) and then a single row of large thin - walled cells ( bast vessels ) between which lie smaller thin - walled cells containing starch granules ( bast parenchyma ) . Within the bast are seen the cross sections of the vessels ...
... fibres ) and then a single row of large thin - walled cells ( bast vessels ) between which lie smaller thin - walled cells containing starch granules ( bast parenchyma ) . Within the bast are seen the cross sections of the vessels ...
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A Course of Elementary Instruction in Practical Biology Thomas Henry Huxley,Henry Newell Martin Uten tilgangsbegrensning - 1877 |
A Course of Elementary Instruction in Practical Biology Huxley Thomas Henry Ingen forhåndsvisning tilgjengelig - 2019 |
A Course of Elementary Instruction in Practical Biology Huxley Thomas Henry Ingen forhåndsvisning tilgjengelig - 2019 |
Vanlige uttrykk og setninger
abdominal acid adductor animal antheridia aortic arch aperture appendages artery attached axis become blood body bone branches Cambridge canal carbonic anhydride cartilage cavity cells chamber chlorophyll chromic acid cilia cloth College colour containing cord Crown 8vo dissect divided division dorsal edge Edition ELEMENTARY elongated epidermis examine exoskeleton external Extra fcap fcap fibres filaments fluid free end Frog front ganglia ganglion gills give rise granular high power hypha hyphæ inch obj inner integument internodes intestine layer limbs lobes Lobster maxilla median membrane middle line mouth muscles nerve Note nucleus numerous organs outer oval pair papillæ passes pericardium peristome plant posterior end prothallus Protococcus protoplasm rectus internus rounded running School seen side solution somites specimens spinal sporangia sporangium spores stem stomach structure surface terminal thick thin tissue Torula transparent transverse section trunk tube urostyle vein ventral ventricle vertebral vertebral column vessels Vorticella walls yeast
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