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Charra [1.4K]
3 years ago
9

Why do cells in the epidermis flatten out and die as they reach the surface of the skin?

Biology
1 answer:
Rudik [331]3 years ago
8 0
May not be right, but because of Oxygen and the growing of new skin? We rub our skin without noticing and it will become frail and rub off, creating new skin
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A runner produced hypotonic sweat while running a marathon in hot weather. Aner the race, he drank large volumes of water. As a
choli [55]

Answer:

Option B) Swell

Explanation:

When runner was running he was sweating which results in loss of water from cells and cells become shrink. But at the end of marathon when he drink water his cells will gain water and store it, which results in swallowing of cells.

4 0
3 years ago
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What are three lines of evidence thst support the theory of evolution
pav-90 [236]
According to kagmi on yahoo these are three lines of evidence that support the theory of evolution.

The fossil record shows the existence of billions of extinct species. It also shows a clear progression from one species to the next; there are many "transitional fossils," such as the archeoptryx (probably spelled that wrong, lol) which is clearly an intermediate in the evolution of dinosaurs into birds. 

<span>Biogeography shows the distribution of species, providing further support that different species can and do evolve from common ancestors. Australia has many species of marsupials not found on other continents, for example; this implies that these species may have shared a common ancestor which lived on Australia when it was separated from the other continents by continental drift. </span>

<span>Molecular biology allows us to analyze genes and proteins down to the very molecules that make them up. This reveals many similarities and differences between organisms not readily apparent to the naked eye. We can see, for example, that humans share the vast majority of their DNA with all mammals; slightly less with reptiles; slightly less with amphibians, and so on. We find that species' DNA sequences match up well with the fossil record in terms of how closely related the species are. </span>
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3 years ago
Is pollen created in mitosis or meiosis?
vichka [17]

I believe that its meiosis but I could be wrong.

5 0
3 years ago
4. At what point was the solution in beaker ""B"" neutralized?
Marina86 [1]

Answer:

Explanation:

This is called the equivalence point. That is the exact point during titration where the relative amounts of each substance in the chemical reaction of titration become well defined by the coefficients in the balanced chemical equation used for expressing the kinetics of reaction.  

A titration is an experimental set up   with a controlled acid-base neutralization reaction.it is used to determine the unknown concentration of an acid or a base.  

Acids and bases neutralize each other, forming a salt and water. Basically, a strong acid-strong base neutralization gives  a neutral solution with a pH of 7.

7 0
4 years ago
Fossil fuels are energy sources often used to generate electricity in power plants or provide fuel for vehicles. Which of these
aivan3 [116]

Answer:

Hey there,

The answer is actually D) The cost to global systems as carbon emissions increase from fossil fuel combustion, leading to climate changes.

Hope this helps :D

Explanation:

4 0
3 years ago
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