The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
Dentro del libro
Resultados 1-3 de 59
Página 209
... adapted to swift running . Over twenty species are known to have been evolved in these side- lines ; what brought their career to a close is uncertain . The next divergent branch began at the close of the Miocene ( V C ) . Its ...
... adapted to swift running . Over twenty species are known to have been evolved in these side- lines ; what brought their career to a close is uncertain . The next divergent branch began at the close of the Miocene ( V C ) . Its ...
Página 429
... adapted to dry- land reproduction , though they had not evolved a woody stem and the dry - land method of growing erect . None of these strange types have survived ; they could only thrive when there was little competition from plants ...
... adapted to dry- land reproduction , though they had not evolved a woody stem and the dry - land method of growing erect . None of these strange types have survived ; they could only thrive when there was little competition from plants ...
Página 705
... adapted to life among ants as tapeworms have had to become adapted to life in vertebrates ' intestines . Some of the smaller hangers - on of humanity , like the cricket on the hearth or the house - martin , have become adapted in this ...
... adapted to life among ants as tapeworms have had to become adapted to life in vertebrates ' intestines . Some of the smaller hangers - on of humanity , like the cricket on the hearth or the house - martin , have become adapted in this ...
Índice
THE RANGE NATURE AND STUDY OF LIVING THINGS | 3 |
66 | 5 |
muscles and related | 8 |
Otras 62 secciones no se muestran.
Otras ediciones - Ver todo
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