The New Encyclopędia BritannicaEncyclopędia Britannica, 1983 - Encyclopedias and dictionaries |
From inside the book
Results 1-3 of 87
Page 45
... animals as elaborate and com- plicated as the kidney and its associated urinary ducts . GENERAL FEATURES Definitions and distinctions . The meaning of excretion is most easily understood in the context of vertebrate physiology . The animal ...
... animals as elaborate and com- plicated as the kidney and its associated urinary ducts . GENERAL FEATURES Definitions and distinctions . The meaning of excretion is most easily understood in the context of vertebrate physiology . The animal ...
Page 50
... animals the blood is almost identi- cal with seawater in composition ; in typical freshwater animals the concentration of the blood is about half that of seawater . Many originally marine animals have evolved the ability to live in ...
... animals the blood is almost identi- cal with seawater in composition ; in typical freshwater animals the concentration of the blood is about half that of seawater . Many originally marine animals have evolved the ability to live in ...
Page 208
... animal life comes only from other living organisms or their remains , animals are known as heterotrophic organisms . All animal life depends ulti- mately on the existence of organisms ( largely green plants ) that can use inorganic ...
... animal life comes only from other living organisms or their remains , animals are known as heterotrophic organisms . All animal life depends ulti- mately on the existence of organisms ( largely green plants ) that can use inorganic ...
Contents
would become the principal reserve asset while gold | 36 |
Excretion the elimination of the waste products of | 50 |
Volumes | 431 |
Copyright | |
2 other sections not shown
Other editions - View all
Common terms and phrases
acid activity amount animals appears become blood body called carried cause cells century changes chemical close common complete consists containing continuous countries depends direction early effect evidence evolution example existence farm federal ferns fibres field Figure fire function gametophyte give groups important increase interest Italy kidney known later leaves less light lines living major marriage material means ment method move movements muscle natural normal obtained occur organs origin percent period person plants position possible present pressure problems produced properties protection reduced remain renal response result retina selection similar social species structure supply surface temperature tend tion types United urine usually various vary