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Mars2501 [29]
3 years ago
14

The ultrasound signal emitted by the external transducer calculates the fetal heart rate by counting the reflected signals that

have?
Health
1 answer:
MissTica3 years ago
3 0

Answer:

high frequency sound waves

Explanation:

The fetal cardiac activity emits signal that comprises of high frequency sound waves. This signal is received only when it is converted into  a fetal heart rate tracing via computer. These signals are traced through transducers and are shown on the external monitor.

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Which of the following is an example of how HIV can be transmitted from one person to another?
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HIV can be transmitted from one person to another person by contact between infected saliva and an open wound.  

Further explanation:

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A person can get HIV by coming into direct contact with certain body fluids from a person who is suffering from the disease.  

These body fluids include

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When these fluids having HIV come in contact with the bloodstream of a person who is HIV negative through a mucous membrane ( which is present in the vagina, mouth, rectum, or on the tip of the penis ); open sore or cut, or by direct injection.  

Activities by which HIV spread from person to person:

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While the less common methods of spread of HIV are

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Answer details

Subject: Health

Level: High school

Keywords

  • Transmission of HIV  
  • Activities by which HIV spread from person to person

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