The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 45
... move in search of food that itself often moves ; they move to avoid predators and to mate . Animals must perceive their own movements to balance themselves and to move effectively ; without such perceptual functions the chances for ...
... move in search of food that itself often moves ; they move to avoid predators and to mate . Animals must perceive their own movements to balance themselves and to move effectively ; without such perceptual functions the chances for ...
Page 170
... move at the surface . The many active seeps of petroleum throughout the world petroleum attest to the fact that crude oil can migrate vertically ; it migration moves upward through joints and fractures always in the direction of lesser ...
... move at the surface . The many active seeps of petroleum throughout the world petroleum attest to the fact that crude oil can migrate vertically ; it migration moves upward through joints and fractures always in the direction of lesser ...
Page 836
... move for the winter to low latitudes or to coasts or to the sea . Many others have extensive movements between a ... move- ments are anticipatory . If food will become scarce , it is advantageous for an animal to move away before this ...
... move for the winter to low latitudes or to coasts or to the sea . Many others have extensive movements between a ... move- ments are anticipatory . If food will become scarce , it is advantageous for an animal to move away before this ...
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activity America animals appear areas atoms became become body called camera century changes characteristics chemical Church colour common complete compounds consists containing continued drugs early effect electrons elements energy example existence experience Family field Figure fins fishes groups human important increase individual industry Italy known later lens less light liquid living lower major material means ment methods move movement natural North object occur organic original Peking Pentecostal percent period permafrost personality pest Peter petroleum Philip philosophy photographs plants political position possible practice present printing problems production Quakers range region result rocks similar social South species structure surface temperature theory tion United usually widely