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ehidna [41]
3 years ago
10

What are the two body systems that are always controlling the body?

Biology
1 answer:
Usimov [2.4K]3 years ago
4 0

Answer:

The nervous system and circulatory system

Explanation:

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Explain how Co2 is able to control fires?<br><img src="https://tex.z-dn.net/?f=co2" id="TexFormula1" title="co2" alt="co2" align
Alborosie

Carbon dioxide is heavier than oxygen gas. It therefore displaces the oxygen gas around a flame. Without oxygen, the combustion reaction will stop and the flame will be put out.

Further Explanation:

In order for a combustion reaction to happen, three components must be present: fuel, oxygen, and heat to cause ignition. When one of these three is removed, the combustion reaction will stop.

CO2 fire extinguishers use the difference in mass of the CO2 and oxygen molecules to stop the fire. Since CO2 is heavier, it will displace any oxygen molecules that are around the flame. When this happens, the supply of the oxygen will be limited or cut-off and the fire will eventually be put out because of the lack of oxygen. This ability to displace oxygen is also what makes using CO2 as fire extinguisher quite dangerous for the user since it pushes away the oxygen that is needed for respiration.

Other ways to put out fire include spraying liquids that absorb the heat to avoid spreading the fire further or spraying substances that coat the fuel (flammable materials) to avoid contact with oxygen gas which can lead to further combustion.

Learn More

  1. Learn more about combustion brainly.com/question/9641392
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Keywords: carbon dioxide, fire, combustion

8 0
3 years ago
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2 years ago
Which rock type or types can form sediment when they are weathered
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The types of rock that can form sediment when they are weathered is D. Igneous, sedimentary and metamorphic. (When the molten rock cools it forms an igneous rock. Metamorphic rocks can form from either sedimentary or igneous rocks. The sedimentary particles from which a sedimentary rock is formed can be derived from a metamorphic, an igneous, or another sedimentary rock. All three rock types can be melted to form a magma.)

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Describe the movement of oxygen molecules if there were more oxygen molecules<br> outside the cell
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Explanation:

Because there's a higher concentration of oxygen molecules outside the cell compared to the cell's cytoplasm, you'll see that oxygen diffuses into the cell along this concentration gradient. ... Because the molecules are moving at random, some will move out of the cell, but most will be moving in in this case.

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An adolescent is brought to the ambulatory care clinic after being hit in the eye during a sporting event. There is no serious d
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<h2>Simple contusion </h2>

Explanation:

Simple contusion in eye

  • Simple contusion is also known as bruise or commonly known as black eye which is used to describe the discoloration that occurs around an eye after a trauma to the eye or surrounding tissues
  • It is caused by broken blood vessels under the surface of the skin is typically accompanied by swelling
  • A serious condition that can accompany a black eye is bleeding inside the eye, in the space between the back side of the cornea and the front of the iris which is called hyphema

Scleral hemorrhage

  • Scleral hemorrhage also known as subconjunctival hemorrhage
  • When small and delicate blood vessels break beneath the tissue covering the white of the eye (conjunctiva), resulting eye redness then this condition is known as subconjunctival hemorrhage
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