FLAGELLATA , the name given to theProtozoa whose dominant phase is a " flagellula," or
See also:body provided with one, few or rarely many long actively vibratile, cytoplasmic processes .
See also:Nutrition is variable: (r) " Holozoic ";
See also:food taken in by ingestion, by amoeboid
See also:action either unspecialized or at one or more well-defined oral spots, or through an aperture (mouth); (2) " Saprophytic " ; food taken in in solution through the general
See also:surface of the body; (3) " Holophytic "; food-material formed in the coloured plasm by fixation of
See also:carbon from the
See also:medium, with liberation of
See also:oxygen, in presence of
See also:light, as in
See also:plants . Fission in the " active " state occurs and is usually
See also:longitudinal . Multiple fission rarely occurs save in a sporocyst, and produces microzoospores, which in some cases may conjugate with others as isogametes or with larger forms . (megagametes) . " Hypnocysts " to
See also:tide over unfavourable conditions are not infrequent, but have no necessary relation to
See also:reproduction . Many have a
See also:firm pellicle which may
See also:form a hard
See also:shell: again a distinct cell-
See also:wall of chitin or
See also:cellulose may be formed: finally, an open
See also:cup, " theca," of firm or gelatinous material may be
See also:present, with or without a stalk: such a cup and stalk are often found in colonial
See also:species, and are subject to much the same conditions as in
See also:Infusoria . The nucleus is
See also:simple in most cases; but in Haemoflagellates it is connected with a second nucleus, which again is in immediate relation with the motile apparatus; the former is termed the " trophonucleus," the latter the " kineto-nucleus." As reserves the
See also:protoplasm may contain oil,
See also:starch, paramylum, leucosin (a substance soluble in
See also:water, and of doubtful composition), proteid granules .
FLAGELLANTS (from Lat. flagellare, to whip)
There are no comments yet for this article.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.
Links to articles and home page are encouraged.