The ocean waters at the equator are warm because they receive more of the sun rays than the waters at the at the poles. Therefore, the water in these regions is less dense than those at the poles. The oceans currents, moving towards the poles from the equator, move on the surface waters while those from the poles move on the ocean floor.
As the warm currents move to the poles and cool, they become more saline because they become more concentrated with salts –saturation point lowers with temperatures. At the poles, most of the salts in ejected from the waters as brine as the water sinks to the ocean floor due to density.
This movement of water currents in such circular motion forms the Thermohaline Circulation. Heat on the planet is distributed in this way.
The use of restriction enzymes and electrophoresis to generate a map of the DNA molecule is known as RESTRICTION MAPPING. This technique is used to map an unknown fragment of DNA.
Restriction enzymes are enzymes that cut a DNA fragment at specific nucleotides sites, thereby generally smaller fragments of DNA.
Restriction mapping is a strategy used to map unknown fragments of DNA by digesting them into smaller fragments and then identifying the specific sites of the DNA breakpoints.
Restriction mapping can then be used to create a diagram of fragments of DNA marked with specific sites where they are cut by specific restriction enzymes.
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Ear is a sensory organ responsible for hearing and listening. It is connected by the auditory nerve which serves as the messenger of information from the sense organ to the brain specifically in the primary auditory cortex.
The ear functions because of its structure that displays and initiates many transformation and accommodation of sound waves to able to translate them and understand these sensations for sound acuity. The pinna, the eardrum, the cochlea and the most important part of the ear is the hairlike structures in the cochlea which transduces these sound waves into meaningful information (perception).
Hepa filters can efficiently remove microbes from the air (Option a is correct).
<h3>What are Hepa filters?</h3>
Hepa filters, i.e., high-efficiency particulate air filters, are used to separate microorganisms from the air.
These filters (Hepa filters) eliminate over 99% of microorganisms such as bacteria, dust and pollen particles having a size higher than 0.3µm.
In conclusion, Hepa filters can efficiently remove microbes from the air (Option a is correct).
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