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Floating a needle on water
Thoroughly dry a steel needle. Place it on the tines of a dinner fork and gently smash the surface of the water in a dish with the fork. If you are careful the needle will float as you take the fork away. Look at the water surface closely. Can you see how the surface film seems to curve under the weight of the needle ?
Explain Antibodies Antibodies (also referred to as immunoglobulins and garnmaglobulins) are produced by plasma cells. They are Y-shaped proteins that each respond to a specific
Semiconductor Devices and their Uses: If a junction is formed between a p-type and an n-type'semiconductor, the device called a p- n junction diode acquires a peculiar pppen
Frost in the classroom Frost can be made in the classroom by using a tall metal container like as a tin can. Pack the can with exchange layers of ice and salt, using about doub
Explain Rh Blood Grouping System Some individuals also have a so called Rh antigen on the surface of their RBCs. Those who have it are called Rh (+) and those who do not have i
Q. Write the purposes of conditioning of wheat prior to milling? The purpose of conditioning of wheat prior to milling are to make the bran and germ pliable, thus preventing th
Determine about the Plant-Available Soil Moisture Plant available soil moisture or total available water is the difference between the amount of water held in the plants root
What is the professional name for the person who studies fossils? Paleontologist
what is cell
Enzyme stabilization Reducing the chances that an enzyme will inactivate (in vivo or in vitro) by changing the environmental conditions (such as pH, temperature, concentra
Explain Rh Incompatibility Rh compatibility sometimes leads to complications which are generally not seen with other types of mismatched transfusions. If a Rh negative is given
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