Animal Life: A First Book of ZoölogyD. Appleton, 1900 - 329 páginas |
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Página ix
... SPECIAL SENSES Importance of the special senses , 224. - Difficulty of the study of the special senses , 224. - Special senses of the simplest ani- mals , 225. - The sense of touch , 226. - The sense of taste , 228.- The sense of smell , ...
... SPECIAL SENSES Importance of the special senses , 224. - Difficulty of the study of the special senses , 224. - Special senses of the simplest ani- mals , 225. - The sense of touch , 226. - The sense of taste , 228.- The sense of smell , ...
Página 43
... sense organs . The muscle processes are better developed , and the digestive cavity is differentiated into central ... special reproductive cells of two kinds , which must fuse to form a cell capable of developing into a new polyp . 25 ...
... sense organs . The muscle processes are better developed , and the digestive cavity is differentiated into central ... special reproductive cells of two kinds , which must fuse to form a cell capable of developing into a new polyp . 25 ...
Página 48
... special function that of feeling or being sensible of stimuli from without . They are the sense organs or sense indi- viduals of the colony . Finally , there are two other kinds . of structures or individuals which produce the special ...
... special function that of feeling or being sensible of stimuli from without . They are the sense organs or sense indi- viduals of the colony . Finally , there are two other kinds . of structures or individuals which produce the special ...
Página 181
... special sense organs like eyes . and ears and feelers which serve to guide and direct the moving animal ; and most non - locomotory parasites will be found to have no eyes , nor any of the organs of special sense which are accessory to ...
... special sense organs like eyes . and ears and feelers which serve to guide and direct the moving animal ; and most non - locomotory parasites will be found to have no eyes , nor any of the organs of special sense which are accessory to ...
Página 183
... special sense organs , nor any organs of locomo- tion . The body is very degenerate . The life history of the tape - worm is interesting , because of the necessity of two hosts for its completion . The eggs of the PARASITISM AND ...
... special sense organs , nor any organs of locomo- tion . The body is very degenerate . The life history of the tape - worm is interesting , because of the necessity of two hosts for its completion . The eggs of the PARASITISM AND ...
Outras edições - Ver tudo
Animal Life: A First Book of Zoölogy David Starr Jordan,Vernon Lyman Kellogg Visualização integral - 1900 |
Animal Life: A First Book of Zoölogy David Starr Jordan,Vernon Lyman Kellogg Visualização integral - 1912 |
Animal Life: A First Book of Zoölogy David Starr Jordan,Vernon Lyman Kellogg Visualização integral - 1900 |
Palavras e frases frequentes
adaptation alimentary canal Amaba ants auditory barriers become bees birds body butterfly California called caterpillars cavity chitinous CLASS colony color common complex animals composed conjugation crab crustaceans differentiation digestive divide division ectoderm egg cells eyes fauna feed female fishes flagella free-swimming function habits hatched higher animals Hydra inclosed individuals insects instinct islands jelly-fishes kinds of animals larva larvæ layer live lower male mals mammals many-celled animals mass medusæ mimicry Monarch butterfly moth naturalists nerve nest nucleus ocean one-celled outer Pandorina papillæ Paramecium parasites parent plants polyp possess prey primitive processes produced protective resemblance protoplasm Protozoa pseudopods Radiolaria realm reflex action region reproductive cells River Sacculina simple simplest animals single cell smell special senses species sperm cells spherical spiders sponge stage streams structure substance surface swim tentacles tion trout vertebrates Volvox Vorticella wall wings worms young
Passagens conhecidas
Página 115 - There is no exception to the rule that every organic being naturally increases at so high a rate, that, if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and at this rate, in less than a thousand years, there would literally not be standing room for his progeny.
Página 88 - Fig. 145 are indistinguishably alike, but one embryo is sure to develop into a fish and the other into a salamander. This certainty of an embryo to become an individual of a certain kind is called the law of heredity.
Página 215 - He cannot be mistaken for any other, and his flaming vest and blue stockings show that he does not court concealment. He is very abundant in the damp woods, and I was convinced he was uneatable so soon as I made his acquaintance and saw the happy sense of security with which he hopped about. I took a few specimens home with me, and tried my fowls and ducks with them ; but none would touch them. At last, by throwing down pieces of meat, for which there was a great competition amongst them, I managed...
Página 164 - Russian naturalist, of the hunting habits of the great white-tailed eagle (Haliattos albicilla) on the Russian steppes shows that this kind of eagle at least has adopted a gregarious habit, in which mutual help is plainly obvious. This naturalist once saw an eagle high in the air, circling slowly and widely in perfect silence. Suddenly the eagle screamed loudly. " Its cry was soon answered by another eagle, which approached it, and was followed by a third, a fourth, and so on, till nine or ten eagles...