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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.
Erlander Company uses a job order cost accounting system. On November 1 2013, $15,000 of direct materials and $3,500 of indirect materials were requisitioned for production. Prepar
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labour cost related case study with solution
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#question.ABC Corportaion produces and sell two products. In the most recent month, Product 123 had sales of $33,000 and variable expenses of $15,840. Product 245 had sales of $42,
The principle that (1) requires revenue to be recognized at the time it is earned, (2) allows the inflow of assets associated with revenue to be in a form other than cash and (3) m
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The following details are available from a company: 2003 2004 2003
CAN I HAVE A QUESTION
A 1- year Canadian bond with a face value of 5000 can be purchased at 4800. a) Calculate the nominal interest rate in Canada. b) If the Canadian dollar is expected to depreci
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