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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.
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
To begin with, we require two successive balance sheets and the operating statement or loss and profit account relating the two balance sheets. There are two ways wherein this s
H Bhd has a 75% holding in the ordinary shares of S Sdn Bhd and 40% in A Sdn Bhd. Shares in S were acquired in 2006 when its retained earnings were RM120 million. The shares in A
1. Wrangle Corporation stock sells at a price of $80 a share and the riskless rate is 7%. Calculate the price of a 9-month call option on Wrangle stock with an exercise price of $7
who to prepare contract account
1) A) In a competitive market place (pure competition) is it possible to continually sell your product at a price above the average cost of production? Why or why not? B) Why d
Smith Corp. has determined that its contribution margin, (P - MC)/P, is 40%. A recent market research study found the following relationship between adverting outlays and sales rev
What does the cost principle mean for a company's income statement?
These sources of funds are resources increased from outside the organization to augment funds availability for any of the utilizations to be discussed later. Generally, there are o
High-Low method of cost estimation and Number of Photocopies as the cost driver, what would be the resulting cost equation for Maintenance Costs?
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