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2 years ago

How can DNA evidence be used to show that all living things share common ancestry?

Biology

1 answer:

Artemon [7]2 years ago

7 0

Answer:

idontknbiow

Explanation:

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Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of

ELEN [110]

Answer:

Total 495 liters of natural oil are needed.

Explanation:

It is given that Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of synthetic oil.

It means the ratio of natural oil and synthetic oil is

$\frac{\text{Natural oil}}{\text{Petrolyn motor oil}}=\frac{5}{5+3}=\frac{5}{8}$

Let in order to make 792 liters of Petrolyn oil he needs x liters of natural oil.

It means the ratio of natural oil and synthetic oil is

$\frac{\text{Natural oil}}{\text{Petrolyn motor oil}}=\frac{x}{792}$

Equate both ratios,

$\frac{x}{792}=\frac{5}{8}$

On cross multiplication we get

$8\times x=5\times 792$

$8x=3960$

Divide both sides by 8.

$x=\frac{3960}{8}$

$x=495$

Therefore total 495 liters of natural oil are needed.

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4 years ago

How does climate change contribute to the increase of the rate of diseases

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Under what conditions might a person with rh- blood develop rh agglutinins

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<span>A person who has rh- blood can develop rh agglutins through;

1. Pregnancy.
2. Transfusion.
3. Exposure to blood.

Agglutination is termed as clumping of particles. It is the process which occurs when an antigen is mixed with its corresponding antibody known as isoagglutinin.
When people are being given blood transfusion of wrong blood group then the antibodies will react incorrectly with the transfused blood group, then the erythrocytes clump up and stick together which causes them to agglutinate.</span>

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4 years ago

How can DNA evidence be used to show that all living things share common ancestry?​

How can DNA evidence be used to show that all living things share common ancestry?