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Naya [18.7K]
3 years ago
13

Charles darwin developed the theory thay explains how new speicies develop based on evidence from many different kinds of scient

ific inquiry. Darwins theory can only be accurate if the earth is very old. The scientists who provided evidence for the earths old age were most likely
Biology
1 answer:
IceJOKER [234]3 years ago
8 0
They were most likely Biologists
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The most important factor that determines the percent of oxygen saturation of hemoglobin is
erik [133]

Answer:

This question lacks options, options are:

a) The partial pressure of oxygen

b) Acidity

c) The partial pressure of carbon dioxide

d) Temperature

e) BPG

The correct answer is a. The most important factor that determines the percent of oxygen saturation of hemoglobin is <u>The partial pressure of oxygen </u>.

Explanation:

Hemoglobin is an oxygen transport protein. Partial Oxygen Pressure (PaO2), measures the pressure of dissolved oxygen in the blood, that is, it shows how well oxygen passes from the lungs into the bloodstream. A high partial pressure of oxygen in the blood produces an almost complete saturation of hemoglobin, which indicates the maximum amount of oxygen that combines, but when PaO2 is reduced, so is hemoglobin saturation, when saturation is below 90% hypoxemia occurs, that is, the level below normal blood oxygen levels.

3 0
3 years ago
Define what diffusion is
tatyana61 [14]

Answer:

is the spread of something more widely

Explanation:

4 0
3 years ago
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The portion of the mRNA molecule that is translated is composed of.
xz_007 [3.2K]

Molecules of mRNA are composed of relatively short, single strands of molecules made up of adenine, cytosine, guanine and uracil bases held together by a sugar phosphate backbone.

Hope This Helps, Lexi

8 0
2 years ago
Two years of dry weather are followed by two wet years, causing the grass population to rise. How will the increase in grass aff
Ulleksa [173]

Answer is;

The animal population in the environment will increase.

This is because the grass is the main producer in a habitat. Its plentifulness directly influences that of the consumers up the food web. Increase in grass population means reduced competition for primary consumers and their population will therefore increase. This will also reduce competition for secondary consumers and tertiary consumers up the chain.  


8 0
3 years ago
If something grows,exchanges has, and needs energy but isn’t made of cells and can’t reproduce A it’s dead B it’s living C it’s
lorasvet [3.4K]

Answer:

D. It is non-living

Explanation:

If something is not made of cells, it cannot be alive.

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3 years ago
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