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Fittoniya [83]
3 years ago
12

Which cell type would have the highest concentration of oxygen on a bright, sunny day?

Biology
1 answer:
Cerrena [4.2K]3 years ago
8 0

Answer: The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest concentration of oxygen.

Explanation: i think is the answer not sure hope it help this question :)

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An isotope has an atomic number of 8 and an atomic mass number of 18. How many neutrons does it have?
Paul [167]
The atomic number of an isotope is the number of protons it contains, whereas the mass number is the total mass of the nucleus, which is the combined number of protons and neutrons in the nucleus. To find the number of neutrons, you must therefore subtract the atomic number of the isotope from the mass number of the isotope. 
<span>In the above example, the atomic number is 8 and the mass number is 18. This isotope is known as O18. The number of neutrons in the isotope is: Mass number - Atomic number = Number of neutrons




</span>
4 0
4 years ago
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What does slay mean?
Margaret [11]

Answer:

<em>Slay:</em><em> </em><em>To </em><em>kill</em><em> </em><em>(</em><em>a </em><em>person</em><em> </em><em>or</em><em> </em><em>animal)</em><em> </em><em>in </em><em>a</em><em> </em><em>violent</em><em> </em><em>way.</em><em>.</em><em>.</em>

6 0
2 years ago
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Translate the word phrase into an algebraic equation: the quotient of 24 and 2 is equal to 12.
igor_vitrenko [27]

Answer:

24/2 = 12

Explanation:

(I'm pretty sure this isn't a Biology question, but I'll answer this because I'm nice.)

To translate English into algebriac equations, we have to understand what the symbols in algebra mean. Here are some we should know:

= : "equal to", "is", "equivalent to", etc.

> : "greater than"

< : "less than"

>= : "greater than or equal to", "at least"

<= : "less than or equal to", "at most"

We also have to know basic math operations:

a + b : "a added to b", "a plus b", "a combined with b", "a more than b", etc.

a - b : "a minus b", "b less than a", "b subtracted from a", etc.

a * b : "a multiplied by b", "a times b", "the product of a and b", etc.

a / b : "the quotient of a and b", "a divided by b", etc.

There are MUCH MORE examples of this, yet it becomes second-nature to change English sentences into algebra.

So, let's tackle the question. Sadly, it's pretty simple, so I won't really go in depth here. Since the quotient of a and b is a/b, the quotient of 24 and 2 is 24/2. We can also say that "is equal to 12" is "= 12". So,

24/2 = 12.

5 0
3 years ago
When the acetyl-CoA produced during -oxidation in the liver exceeds the capacity of the citric acid cycle, the excess acetyl-Co
Oliga [24]

Answer:

There is a need to transform the accumulation of acetyl-CoA into the ketone bodies, as one knows that acetyl-CoA is both labile and possess an enormous amount of energy. Hence, acetyl-CoA due to its unstable characteristic is not ideal for circulation within the tissues, and at the same time, the compound acetyl-CoA does not possess the tendency to pass through the cell membrane.  

Due to these reasons, the conversion of acetyl-CoA into the ketone bodies is done, the ketone bodies also act as an alternative source of energy. The ketone bodies work as water-soluble correspondents of fatty acids. The production of ketone bodies generally takes place within the liver cells' mitochondrial matrix. The three forms of ketone bodies are beta-hydroxybutyrate, acetoacetate, and acetone.  

The production of ketone bodies by the liver cells helps the cells of the brain at the time of starvation, as the brain cannot use fatty acids as an energy source, as the fatty acids cannot pass through the blood-brain barrier.  

6 0
3 years ago
18. RNAi is a technique that silences genes by targeting them and degrading their mRNA. How can this technique be used in scient
MrRissso [65]

Answer:

B

Explanation:

RNAi is a cellular mechanism for post-transcriptional gene silencing. After transcription of a gene into mRNA, small interfering RNA (siRNA) and microRNA (miRNA) can target the mRNA to form dsRNA. This mRNA then becomes a target of ribonucleases such as the Dicer that break it apart. These mRNA, therefore, do not reach the cytoplasm for translation by ribosomes. This mechanism is hence harnessed and manipulated by scientists to study genes by silencing them.

6 0
3 years ago
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