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seropon [69]
3 years ago
8

Which component of bone is responsible for its strength?

Biology
1 answer:
Lorico [155]3 years ago
6 0
<span>The answer is osteoid. It begins with unmineralized collagen fibers and ground substance. Later it becomes a calcified matrix. The matrix is mainly made of collagen and calcium ions.   When not well mineralized, osteoblasts proliferates hence the bone will not have the desired strength. This results to deformation of bone causing rickets</span>




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Answer:

a) produced the oxygen in the atmosphere

Explanation:

  • Prokaryotes are likely to first form of life on earth and they existed billions of years ago before animals and plants.
  • As these prokaryotes can do photosynthesis so there most important function is produce oxygen in atmosphere for the evolution of aerobic life.
  • At that time the conditions were harsh on earth so these prokaryotes are used to survive under earth like in oceans. They first produce oxygen in oceans.
  • In eukaryotes photosynthesis emerge by endosymbiosis with photosynthetic prokaryotes.

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3 years ago
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Which does not describe a cause of the Spanish-American War in 1898? A. Americans believed that the Spanish had sunk the battles
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<span>Spanish authorities in Cuba were accused of atrocities against the people.</span>
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Answer: Atmospheric Nitrogen is unreactive

Explanation:

The atmosphere is made up of about 80% Nitrogen, 16% oxygen, about 4% carbon dioxide, rare gases etc.

However, the 80% Nitrogen is highly unreactive, and needs to be trapped by competent micro organisms known as nitrogen-fixing bacteria in the root nodules of legumes.

Then, it is converted to several forms like nitrites, nitrates (easily absorbed by plants), ammonia and finally escape to the atmosphere again.

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Answer:

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Explanation:

espero y te sirva

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3 years ago
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kupik [55]

Considering the choices;

A. blood glucose level and pH

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Explanation;

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At low temperature for example the enzymes are inactivated while at high temperatures enzymes are denatured.

At optimal temperature and pH; the chemical reaction rate is optimal.

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