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morpeh [17]
3 years ago
15

An advantage of using a model instead of the real thing is that models

Biology
1 answer:
nevsk [136]3 years ago
3 0
Can be bigger or smaller than the actual thing.
less expensive.
be shown with or without detail.
and takes less amount of time.
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Hikers who found a human body at high altitude in the italian alps thought the man had died recently but tests indicated he was
Marina CMI [18]

The body was preserved because the body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.

<h3>How is a body preserved?</h3>

It is common to observe that bodies are often preserved at a very low temperature hence the body was preserved because the body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.

The reason why the AIDs virus which contains RNA, to insert into the DNA of a host of T-cells after the AIDs virus enters the cell is because of receptor proteins located on the surface of the virus.

The organism that lacks the ability to maintain their own metabolic pathways and can only reproduce inside of a host cell are the viruses.

The chemicals released by one type of immune cell to directly activate another type of immune cell are the cytokines.

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8 0
1 year ago
Compare the environmental consequences related to obtaining the three major types of fossil fuels.
Allushta [10]
All three are bad for the environment because all three types release CO2 into the air and have throughout their constant usage helped with creating the greenhouse effect that traps heat and causes global warming. That's why clean energy is a necessity and people are developing harnessing wind and solar power.
3 0
3 years ago
The idea that layers of sediment are always deposited horizontally is called_____.
Anettt [7]

Answer: The Principle of Original Horizontality

Explanation: The Principle of Original Horizontality states that layers of sediment are at first deposited horizontally below the movement of gravity. It is a relative relationship technique. The precept is critical to the evaluation of folded and tilted strata.

3 0
3 years ago
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Explain how the release of sodium and chlorine would lead to a loss of water in the intestines
frosja888 [35]

Answer:

Please find the explanation below

Explanation:

Sodium (Na) and Chlorine (Cl) are two electrolytes that play important role in the absorption of water and nutrients in the small intestine. However, as mentioned in the question, the release of sodium and chlorine would lead to a loss of water in the intestines. This is because of the OSMOTIC phenomenon.

Osmosis is the movement of water molecules from a region of high concentration of water/low concentration of solute to a region of low concentration of water/high concentration of solute via a semipermeable membrane. In this case, the Na+ and Cl- ions serve as the solutes, which when released out of the intestine causes the solution in the intestines to be HYPOTONIC compared to the intestinal environment. This causes an OSMOTIC GRADIENT.

This osmotic gradient i.e. difference in concentration provokes osmotic flow of water from the intestines, which has a low solute/high water concentration, to the outside of the intestines, which has a high solute/low water concentration. Hence, water is lost from the intestine because the solute concentration becomes low when sodium and chlorine ions are released.

3 0
2 years ago
How far is the sun away from mars?
saw5 [17]

Answer:

230.43 million km

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5 0
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