The New Encyclopaedia Britannica: Macropaedia : Knowledge in depth |
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Page 129
... chemical sense , with different sensitivities for various chemicals , as measured by the lowest concentrations ( thresholds ) of chemicals that can be received . Terrestrial invertebrates , particularly insects , do exhibit separable ...
... chemical sense , with different sensitivities for various chemicals , as measured by the lowest concentrations ( thresholds ) of chemicals that can be received . Terrestrial invertebrates , particularly insects , do exhibit separable ...
Page 131
... chemicals ) , or they may be functionally differentiated although struc- turally they appear to be identical . Reports of studies of chemical reactions among echino- derms are few and spotty . These animals respond posi- tively to ...
... chemicals ) , or they may be functionally differentiated although struc- turally they appear to be identical . Reports of studies of chemical reactions among echino- derms are few and spotty . These animals respond posi- tively to ...
Page 139
... chemical reception among birds . There is growing evidence that chemoreceptors are well devel- oped in at least some birds . The receptors are well - known : taste buds on the tongue and olfactory epithelium in a rather uncomplicated ...
... chemical reception among birds . There is growing evidence that chemoreceptors are well devel- oped in at least some birds . The receptors are well - known : taste buds on the tongue and olfactory epithelium in a rather uncomplicated ...
Contents
SÃO PAULO | 3 |
SCANDINAVIAN LITERATURE | 10 |
The History of SCIENCE | 32 |
Copyright | |
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activity animals appears become behaviour body brain called cause cells central centre century changes chemical classical close common completely consists contains continued culture direction dreams early effects example existence experience female fibres field Figure frequency function Greek groups hair head hearing human important increase individual influence inner interest Italy known late later less light literature major male material means mechanical membrane methods middle move movement muscle nature nerve NREM objects observed occurs organs original pattern period person plays position produced receptors relief response result retina sculpture sense sensitivity sensory sexual Shakespeare slavery slaves sleep social society sound species stage stimulation structure style surface taste theory tion types usually vision visual