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seraphim [82]
3 years ago
9

What are two tools used for sending information? cars and buses water and wind smoke and wood radio waves and lightwaves

Biology
1 answer:
r-ruslan [8.4K]3 years ago
5 0

Answer:

radio waves and lightwaves

Explanation:

Radio waves and light waves are both types of electromagnetic waves in the electromagnetic spectrum. Radio waves and light waves travel a particular distance and hence, are used to convey information over distances.

Based on this question, radiowaves and light waves are both tools used to send information. Radiowaves carry information from the station to the receiver, likewise light waves from one medium to another.

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The correct answer is B

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What are the functions and vessels of the heart, and what are some cardiac disorders that might be life-threatening to a person
zavuch27 [327]

Answer:

The cardiovascular, or circulatory, the system supplies the body with blood. It consists of the heart, arteries, veins, and capillaries. but the things that might be life-threatening to a person or animal are;

Explanation: angina is a type of chest pain that occurs due to decreased blood flow into the heart this can harm animals and people. there is also - - - arrhythmia,which is or an irregular heartbeat or heart rhythm,

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- hypertrophic cardiomyopathy, in which the heart muscle walls thicken and problems with the relaxation of the muscle, blood flow, and electrical instability develop

these are only a few that can harm or even kill a living thing like and animal or person these things are really harmful.

I hope this helps you!!

5 0
2 years ago
Which best describes stem cells
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