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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.
A company wishes to devise a fair means of allocating funds to its four main departments, namely Accounts, Production, Sales and Transport. The total allocation is to be £100,000.
Match each of the six following terms with the phrase that most closely describes it. Each answer may be used only once. _____ 1. Direct costs _____ 2. Fixed costs _____ 3
1. The table below gives data for Southland where there are three consumption goods: bananas, coconuts and grapes. Goods Quantity in base period basket
NSC Ltd. has a 31 May fiscal year-end. NSC disposed of its Information Systems Group (ISG) on 31 January 20X3. ISG had a net loss (after taxes) of $37,700,000 in 20X3, to the date
what is the purpose of cost accounting and its nat ure?
Marple Associates is a consulting firm that specializes in information systems for construction and landscaping companies. The firm has two offices-one in Houston and one in Dallas
Variance Analysis and Standard Costing Standard costing is defined with CIMA like a technique that uses standards for revenues and costs for the purpose of control via varianc
Margin of safety Measures the sensitivity of budgeted sales volume compared with break-even sales volume. The difference between level of sales activity achieved and level of s
Determine the Joint Cost A company produces three products, Y1, Y2, and Y3 in the similar process. The data below reflects average monthly results as:
Total profit means the total revenue excluding the total cost of the certain products. Average profit defines the profit which comes and achieved after selling each unit. Total
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