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Negative staining is often used in diagnostic microscopy and it is the opposite of positive staining where the specimen is stained and background not.
Negative staining is used for the bacteria that are difficult to stain such as Spirilla. It is also used for the study of the morphological shape, size and arrangement of the cells that are too delicate to be heat-fixed.
<span>ectoderm and endoderm theres only two layers</span>
Answer:
What is energy transformation? One type of energy can change into another type of energy. Energy transformation means the changing of energy from one type to another, e.g. from kinetic energy to electrical energy, or from potential energy to kinetic energy.
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The muscular system allows for movement within the body, for example, during digestion or urination. Smooth muscles in the gastrointestinal or GI tract control digestion. The GI tract stretches from the mouth to the anus. Food moves through the digestive system with a wave-like motion called peristalsis.
