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Explain about the Dessicator?
A dessicator is used to prevent an item from absorbing moisture. It is able to accomplish this because of a chemical, known as the dessicant, is housed within the container.
This chemical, normally sodium sulfate, is extremely hygroscopic and will readily absorb water from the air. Figure illustrates a dessicator used to keep salts that absorb atmospheric humidity. It prevents chemicals from absorbing moisture from air.
Explain the Basic Concept of Adulteration? Food adulteration is the change in original composition and quality of food by adding, removing or substituting some ingredients of f
Studying life histories of insects Cut large rectangular holes in the sides of a big cardboard container and cover them with muslin folded over at the edges and gummed or paste
SPERM A T OCY T OGENESIS In this process four spermatid develop from one PGC. (i) Multiplication phase The spermotogonia or sperm mother cells lie next to the b
Define Historical example of virulence? The "classical dogma" of epidemiologists was that pathogens all the time evolve in the direction of lower virulence, eventually becoming
a) Explain what is meant by ovulation. b) How often does it happen in humans? (a) Ovulation is the release of an ovum from a mature follicle in the ovary.
A In taxonomy, what is a "KEY" ? List the different types of keys. How are they prepared and what are they used for ?sk question #Minimum 100 words accepted#
What happens to transcription at the lac operon when lactose is absent and why? What happens to transcription at the lac operon when lactose is present and why? What happens
Shapes of viruses Viruses occur in a wide variety of shapes. Some are spherical or polyhedral . Some are helical appearing cylindrical or rod-like and other are complex. Virus
What is the fuction of Starch Starch is the main thickener in gravies, sauces and puddings. Starch absorbs water, and becomes a gel when cooked. As the starch swells up with w
way of remember phylum protozoa
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