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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.
This coursework is intended to help you develop your understanding of shell scripting in both a Windows and Unix environment. You should undertake this coursework in groups cons
Q. 1. The 31st December 2009 trial balance of Anika Co. reported the following information. Dr. Cr. Allowance for Bad Debts........................... $1,300 During the year 201
COST PROFIT VOLUME ANALYSIS Cost profit volume (CVP) analysis is an essential tool for profit planning. It can be explained as - ' a managerial tool showing the relationship a
After you have studied this section, you should be capable to: know the idea of funds flowing by a business in a dynamic situation understand the role of working capital
Balance Sheet Preparation with a Missing Element The following data are available for Schubert Products Inc. as of December 31, 2012. Cash . . . . . . . . . . . . . . . . . . .
what is a cost sheet? what are its advantages?
critically explain cost accounting as 1. a service activity 2. a descriptive/analytical discipline 3. an information system
Calculate Cost or Equivalent Units The given work in progress account concerns to the blending department of a company, a soft-drinks company for the month of January in 1999
Balance Sheet Classi?cations and Relationships: Shelley and Co. has the following balance sheet elements as of December 31, 2012. Land. . . . . . . . . . . . . . . . . . . . . .
priple of accounting
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