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boyakko [2]
3 years ago
8

The answer about this because tomorrow I take test

Biology
1 answer:
Masja [62]3 years ago
8 0
Okay i will try they is no possible answer
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1. how many chambers does the human heart have?
cluponka [151]
<h2>Answer:</h2><h3>1. four</h3>

Your heart has four separate chambers that pump blood, two on the right side and two on the left.

2. When the ventricle relaxes, the aortic valve closes <em>to prevent blood from flowing back into the ventricle</em>. When the aortic valve is not working properly, it can interfere with blood flow and cause the heart to strain to send blood to the rest of the body.

3. In medicine, a person's pulse is a pressure wave caused by the expansion of the arteries as a result of the circulation of blood pumped by the heart.

4. Capillaries are tiny vessels that branch out from arterioles to form networks around body cells.

Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them.

<em>hope</em><em> </em><em>this</em><em> </em><em>help</em><em>!</em><em> </em><em>^</em><em>^</em>

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3 years ago
Said all cells come from pre existing cells
kifflom [539]
In 1885 Virchow said that all cells exist from pre-existing cells
7 0
3 years ago
Monoglycerides diglycerides and triglycerides are distinguished from one another by the
larisa [96]
Answer: they are distinguished from one another <span>by the number of fatty acids attached to the glycerol backbone.
</span>
<span>A monoglyceride is a  molecule formed by a glycerol backbone and one fatty acid covalently bonded to it through ester linkages.
</span>A diglyceride is a  molecule formed by a glycerol backbone and two fatty acid chains covalently bonded to it through ester linkages.
A tryglyceride is a  molecule formed by a glycerol backbone and three fatty acid chains covalently bonded to it through ester linkages.
3 0
3 years ago
What part of the world is acid rain a problem
Katen [24]
Answer: Anywhere near water (rivers, downstreams, oceans, etc.)
5 0
3 years ago
What are the major classes of lipids​
PolarNik [594]

Answer:

phospholipids, sterols, and triglycerides

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Phospholipids make up the outermost layer of cells in the bodies of both animals and humans. They create a protective layer around the cells to help maintain them.

Sterols are a subset of steroids, a type of hormone.

Triglycerides are the fats and oils that you are familiar with in foods. This type of lipid can be saturated or unsaturated, which is part of what makes them solid or liquid, respectively, at room temperature.

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2 years ago
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