. An elementary course in practical zoölogy [microform]. Zoology; Zoologie. PARAMCECIUM. eg ..I«.erve that this whole cavity is lined with cilia, and that â e .â operation, ,,ro<lucing ennentx in the â â by food-partieles are swept into the mouth- ⢠-:"Met does not lead by a ââon» tube to a deH- . o,âach but any part of the body within acts as a .U e "at I , " "T" °' f''"<'-l"""^-'es has aecu- . iUted at the ower end of the gullet, the , by a ." .traction o. the body, i» forced further into LLft ^.bstance of t
. An elementary course in practical zoölogy [microform]. Zoology; Zoologie. PARAMCECIUM. eg ..I«.erve that this whole cavity is lined with cilia, and that â e .â operation, ,,ro<lucing ennentx in the â â by food-partieles are swept into the mouth- ⢠-:"Met does not lead by a ââon» tube to a deH- . o,âach but any part of the body within acts as a .U e "at I , " "T" °' f''"<'-l"""^-'es has aecu- . iUted at the ower end of the gullet, the , by a ." .traction o. the body, i» forced further into LLft ^.bstance of the body, leaving the blind end th "l e ;is It was before. By silting some finely .^wdered indi' the water this process of taking food â^^ Z^Z »een. Ihese annnals seen, to have little or ââ sensed i-te, as .ndrgestible particles are readily taken in. There .s a regular place for ejecting such indigestible matter watch patiently to make out where this is ' Note the changes of shape which the body undereoe. s It forces Its w-ay through -arrow places, between par tides of sediment in the water. ^ If a specimen that is pretty quiet be carefully watched transparent space will be seen at some point irthe l».<!y; this, after remaining visible for some twenty or thirty -onds will suddenly disappear, and gradnally'-eCl !..» IS the contractile vesicle. la some species theTa J two contractile vesicles. "ztr^^ 'r '^°^:"^'^^-«^ d° they .etain their 1 nal 8ize ? Do they maintain a fixed position ^ I ace a drop of iodine solution on the slide at the f thecover-shp. The cilia, thus stained, may be mofe â¢stinctly seen. Make a drawing showing 1 ^ ^' ^^^^ 1. The shape of the body. 4. The cilia. -. The vestibule and gullet. 5. The contractile vesicle. o. Ihe food masses. o|. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearan
Size: 821px × 3043px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
