The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página xv
... various species of Drosophila . The effect of inbreeding Artificial control of development Some monstrosities due to abnormal development PAGE 302 303 Improvements in the construction of the nervous system Improvements in the ...
... various species of Drosophila . The effect of inbreeding Artificial control of development Some monstrosities due to abnormal development PAGE 302 303 Improvements in the construction of the nervous system Improvements in the ...
Página 102
... various other organs of the body have still to be explored . The thymus , for example , is a large , pink gland lying over the heart in very young children but dwindling and disappearing before the age of discretion is reached ...
... various other organs of the body have still to be explored . The thymus , for example , is a large , pink gland lying over the heart in very young children but dwindling and disappearing before the age of discretion is reached ...
Página 676
... various sense - organs is received and collected , and whence harmonious impulses are sent to the various effectors . Only thus can behaviour be knitted together and the different parts be made to work as a single whole . in ...
... various sense - organs is received and collected , and whence harmonious impulses are sent to the various effectors . Only thus can behaviour be knitted together and the different parts be made to work as a single whole . in ...
Índice
THE RANGE NATURE AND STUDY OF LIVING THINGS | 3 |
66 | 5 |
muscles and related | 8 |
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Términos y frases comunes
active algæ animals arthropods bacteria become birds blood body bones brain branches called capillaries carbon carbon dioxide cells Cenozoic changes chemical chromosomes colour creatures crustaceans digestive Echinoderms eggs elaborate embryo Eocene Everyman evolution example eyes fact female fertilized fish flatworms flowers fluid forms fossils gametes genes germ-plasm glands grow growth heart human Ichthyosaurs important individual insects intestine kidneys kinds land larvæ layer less limbs liver living things lobster lungs male mammals marsupials matter means ment microscopic million molluscs mouse mouth movements muscles mutations nervous system normal notochord Obelia organs ovary ovum oxygen pair parasitic phylum plants polyps produced proteins prothallus protozoa reproduction reptiles round secretion sense-organs sexual shell skeleton skin species spermatozoa sperms spores stage starfish stomach structure substances surface swim tail teeth thyroid tiny tion tissue to-day tube types variations various vertebrates whole worms