The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 176
... animals react to chemicals in the environment , ini- tially through a sensory process called chemoreception . The process begins when chemical stimuli come in con- tact with chemoreceptors , specialized cells in the body that convert ...
... animals react to chemicals in the environment , ini- tially through a sensory process called chemoreception . The process begins when chemical stimuli come in con- tact with chemoreceptors , specialized cells in the body that convert ...
Page 177
... animals depend on their ability to identify species or individuals . Thus , honeybees scent - mark their own hive and areas around it with odours that uniquely identify that particular in- sect community for its members . Many mammals ...
... animals depend on their ability to identify species or individuals . Thus , honeybees scent - mark their own hive and areas around it with odours that uniquely identify that particular in- sect community for its members . Many mammals ...
Page 1028
... animals and aquatic communities . Vertical and horizontal patterns . Growth forms and life - forms relate to stratification - a general character- istic of communities . Plant communities on land show vertical differentiation when the ...
... animals and aquatic communities . Vertical and horizontal patterns . Growth forms and life - forms relate to stratification - a general character- istic of communities . Plant communities on land show vertical differentiation when the ...
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acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer chemical bond chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride Chou common complex compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups hydrogen important increased industry insects involved ions isotopes king known land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nuclei occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang shell Sinhalese social sodium sodium chloride solution southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion Tsung turtles Yangtze