Animal Life: A First Book of ZoölogyD. Appleton, 1900 - Всего страниц: 329 |
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Стр. 173
... crustaceans , annelids , mollusks , and other invertebrates burrow into the substance of living sponges , not for the purpose of feeding on them , but for shelter . On the other hand , the little boring sponge ( Cliona ) burrows in the ...
... crustaceans , annelids , mollusks , and other invertebrates burrow into the substance of living sponges , not for the purpose of feeding on them , but for shelter . On the other hand , the little boring sponge ( Cliona ) burrows in the ...
Стр. 179
... crustaceans ; there are parasitic worms , and parasitic crustaceans and mollusks and insects , and a few vertebrates . When an animal can get along more safely or more easily by living at the expense of some other animal and takes up ...
... crustaceans ; there are parasitic worms , and parasitic crustaceans and mollusks and insects , and a few vertebrates . When an animal can get along more safely or more easily by living at the expense of some other animal and takes up ...
Стр. 180
... crustaceans called fish - lice and whale - lice , which are attached to marine ani- mals . On the other hand , almost all animals are infested by certain parasitic worms which live in the alimentary canal , like the tape - worm , or ...
... crustaceans called fish - lice and whale - lice , which are attached to marine ani- mals . On the other hand , almost all animals are infested by certain parasitic worms which live in the alimentary canal , like the tape - worm , or ...
Стр. 187
... crustacea - the class of shrimps , crabs , lobsters , and cray - fishes - is Sacculina . The young Sac- culina is an ... crustacean as a cray - fish or crab . The Sacculina after a short period of independent existence at- taches itself ...
... crustacea - the class of shrimps , crabs , lobsters , and cray - fishes - is Sacculina . The young Sac- culina is an ... crustacean as a cray - fish or crab . The Sacculina after a short period of independent existence at- taches itself ...
Стр. 194
... crustaceans related most nearly to the crabs and shrimps . The young barnacle just from the egg ( Fig . 123 , f ) is a six - legged , free - swimming nauplius , very like a young prawn or crab , with single eye . In its next larval ...
... crustaceans related most nearly to the crabs and shrimps . The young barnacle just from the egg ( Fig . 123 , f ) is a six - legged , free - swimming nauplius , very like a young prawn or crab , with single eye . In its next larval ...
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adaptation adult alimentary canal Amaba ants become bees birds butterfly called cavity chitin CLASS colony color complex animals composed conjugation crab crustaceans cytoplasm degeneration differentiation digestion divide ectoderm egg cells eyes fauna feed female fish flagella free-swimming function gastrula Globigerinæ habits hatched higher animals host Hydra inclosed increase individuals insects instinct intestine islands jelly-fishes kinds of animals larva larvæ layer live male mals mammals many-celled animals mass medusa mouth opening naturalists nerve nest nucleus ocean oesophagus one-celled outer oxygen Pandorina papillæ Paramecium parasites parent perform plants polyp prey primitive processes produced protective resemblance protoplasm Protozoa pseudopods queen Radiolaria reflex action reproductive cells Sacculina sea-anemone shape shell simple simplest animals single cell special sense species sperm cells spherical spiders sponge spores stage structure substance surface swimming tentacles tion vertebrates Volvox Vorticella wings workers worms young