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Vorticella can first be seen by the naked eye, b.ut to study it place a prepared slide under the microscope. Focus it under low power, and observe it. You can see a large number of specimens attached to aquatic plants or some object by thread-like contractile stalks. Tliey appear like tiny balloons attached by strings. Now focus tlie slide under tlie high power of the microscope, and study tlie following cliaraclers carefully:
i) Vorticella has bell-shaped body with a long slender and conitractile stalk for attachment.
ii) Tlie free broad end of tlie body is the oral end, while the opposite narrow end is the aboral end.
iii) Tlie entire body is covered by a thin pellicle and the protoplasm is clearly distinguisliable into an outer ectoplasm and an inner'endoplasm.
iv) The bell margin is fringed with a circle of cilia, while tlie central Inass forms the peristomial disc, wliicli is separated from tlie margin by a sliallow circular depression called oral groove or peristome.
v) On one side of tlie groove the peristomial groove is extended into tlie interior of tlle bell forming a vestibule or tlie buccal cavity. At tlie inner end, the vestibule opens through the cytostome into the cytopharynx.
Direct Material Cost Variances (DMCV) This variance is a general difference in the standard direct material cost and the actual direct material cost. This variance may be prese
Variable Overhead Expenditure Variance Budget for December 2003; Shs. Fixed Overheads 11,480 Variable Ov
Raw Materials: Manufacturing Overhead Bal 1/1: 36,000 Credits: ? Debits: 383,000 Credits: ? Debits: 470,000 Bal: 12/3: 156,000 Work in Process: Bal 1/1: 73,000 Credits: 770,000
31. Special Orders Maria’s Food Service provides meals that nonprofi t organizations distribute to handicapped and elderly people. Here is her forecasted income statement for April
i want to know the different types of costs.
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High-Low method of cost estimation and Number of Photocopies as the cost driver, what would be the resulting cost equation for Maintenance Costs?
Build-Rite construction has received favorable publicity from guest appearances on a public TV home improvement program. Public TV programming decisions seem to be unpredictable, s
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