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mel-nik [20]
3 years ago
15

How does your radio tuner select for different FM radio stations

Biology
1 answer:
alexgriva [62]3 years ago
6 0

Modern radio tuners use a superheterodyne receiver with tuning selected by adjustment of the frequency of a local oscillator. This system shifts the radio frequency of interest to a fixed frequency so that it can be tuned with fixed-frequency band-pass filter

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Research appropriate treatment for bacterial meningitis and describe a comprehensive plan to treat those affected as well as pre
Andrej [43]

Treatment

Meningitis is an infection of the membranes, meninges that surrounds and protects the central nervous system (the brain and spinal cord). Bacterial meningitis must be treated immediately with intravenous antibiotics and sometimes corticosteroids and, of course, the antibiotic depends on the type of bacteria causing the infection.

Prevention

First of all, to prevent the spread of bacterial meningitis it is important to practice good hygiene, such as frequent handwashing. Since the factors that increase the risk include spending time in communities (school, campus or college) because it spreads easily, children should be aware and vaccinated. As several types of bacteria can cause bacterial meningitis, a range of vaccines is wide (e.g. meningococcal vaccine, Hib vaccine).

7 0
3 years ago
Your family is driving across the country to the Grand Canyon. What type of pollution is your car producing?
il63 [147K]

Answer:

Option A, Mobile source

Explanation:

A mobile source of pollution pollutes the environment while moving. It does not stay at one constant position like a chimney of industry or a stationary machine releasing pollutant gases. Hence, all the moving vehicles, automobiles, diesel engines etc. which release harmful things thereby degrading environment are called mobile source of pollution. Thus,  a car releasing pollution while driving through the Grand Canyon will be considered as mobile source of pollution.  

4 0
3 years ago
Why is bacteria placed in the kingdom prokaryotes
sukhopar [10]
Prokaryotes are chiefly defined as cells without a nucleus to contain the genetic information. Bacteria do not have a nucleus but, like prokaryotes, a nucleoid region in the center where the DNA can be found. Bacteria also do not have membrane-bound organelles, but they do have ribosomes to synthesize proteins. Bacteria vary a lot in the different structures they can have, but these basic factors make bacteria prokaryotes.

Hope this helps! :)

7 0
3 years ago
The region of land—approximately 4 km2—a jaguar must roam to collect food would be an example of a(n) ____________
kvv77 [185]

Answer:

Easy. Habitat.

Explanation:

4 0
3 years ago
The common goal of the endocrine and nervous systems is to
AleksandrR [38]
Is to preserve homeostasis by coordinating and regulating the activities of other cells, tissues, organs, and systems
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3 years ago
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