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To allow air into and out of the middle ear so that the pressure in the middle ear can equalise with ambient pressure. To allow the middle ear to drain should this be needed and to allow air to be displaced in the event of a very loud noise.
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What are the functions of the test tube holder?
The test tube holder has many functions. It can be used to hold test tubes, making it easy to investigate the contents of the test tubes. These holders can also be used to hold stirring rods used in the laboratory and pipettes.
What are functions of CRT?
Cathode ray tubes have the task of converting electronic signals into a beam of electrons that create pictures on a screen. In most cases, the screens are made of fluorescent tubes.
Function of phloem parenchyma?
The parenchyma cells in between the sieve tubes of the phloem, and functions primarily for food storage.
How do hyphae help a fungus in its life processes?
hyphae are the branching, threadlike tubes that make up bodies of multicellular functions
What are the functions of source and sink in biology?
at sorce, food is moved by active transport in the sieve tubes of phloem.due to the presence of sugar in sieve tubes,their solutes concentration increse and water enter them from xylemthis resuts in higher pressur of water in these tubes, which drives the solution of food toward sink/.
What are the ureter main functions?
The ureter are narrow and long tubes that connect the kidney to the bladder. The only function it performs is carrying the urine to the bladder from the kidney.
What can perform the same functions as transistors but they are larger give off more thermal energy don't last as long and are tube shaped?
Vacuum tubes
Reasons for no air in vacuum tubes?
Vacuum tubes perform their various functions on the principle of streaming electrons: that is electrons able to fly across space from one electrode to another. If there is air in the tube then this is a barrier to the electron's flight and the tube cannot function.
Why many modern electronic devices use integrated circuits instead of vacuum tubes?
Integrated circuits consume less power, are smaller, can be more complex in a much smaller space and are cheaper to make for similar functions than vacuum tubes.
What are nanotubes when referring to science?
A nanotube is an item used in very small robots. These are the tubes which are used in nano-robots. They are used in different forms and shapes for their functions.
What are the parts of a centrifuge and their functions?
A centrifuge has holes to insert the centrifuge tubes in, a cap to secure the tubes inside, and a lid to protect both the samples and experimenter in case of malfunction. There is also typically a way to set the centrifuge speed and a power switch to turn the centrifuge on and off.
What is the functions of micro tubes?
it is used to spin small (2 ml or less) liquid samples at high speeds (generally tens of thousands times g-force).
