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ikadub [295]
3 years ago
10

Which characteristic is common to all minerals? A. They are naturally occurring. B. They have the same chemical compositions. C.

They have an amorphous structure. D. They are organic.
Biology
1 answer:
leva [86]3 years ago
8 0
The answer is; a) they are naturally occurring.
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Some regions of a polypeptide may coil or fold back on themselves. This is called _____, and the coils or folds are held in plac
Alenkinab [10]

Answer:

secondary structure ... hydrogen bonds...

Explanation: Some regions of a polypeptide may coil or fold back on themselves. This is called secondary structure, and the coils or folds are held in place by hydrogen bonds.

3 0
2 years ago
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Cooking is easy in pressure cooker why?
bazaltina [42]

Answer:

This compression increases the pressure inside cooker to more than atmospheric pressure which in turns increases the boiling point of the remaining water.

Explanation:

This compression increases the pressure inside cooker to more than atmospheric pressure which in turns increases the boiling point of the remaining water. ... Higher temperature of water means higher transfer of heat to food kept in it and hence the faster cooking.

3 0
3 years ago
a researcher wishes to know whether there is a significant difference in the number of knee injuries reported among four sports.
boyakko [2]

Answer:

Chi-square analysis cannot be used to check for significant difference in the number of knee injuries among four sports.

Explanation:

The chi-square analysis is a statistical procedure that is used to test association between measured variables or goodness of fits of a set of measured variables to expected outcomes.

<em>In the case of testing for significant difference, chi-square analysis cannot be used as testing for significant difference in two or more means requires using t-test, analysis of variance, or any other relevant statistical procedure.</em>

To compare number of knee injuries reported among four sports for significant difference, the most suitable statistical procedure would be analysis of variance.

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8 0
3 years ago
Which organelle is responsible for wilting?
makkiz [27]

Vacuole is the answer.

Wilting is the loss of rigidity of non woody parts of plants and occurs when turgor pressure falls. 

The vacuole controls turgor pressure. Turgor pressure dictates the rigidity of the cell and is associated with the difference between the osmotic pressure inside and outside the cell.

When a plant receives adequate amounts of water, the central vacuoles of its cells swell as the liquid collects within them creating a high level of turgor pressure which helps maintain the structural integrity of the plant along with the support of the cell wall.

In the absence of enough water , central vacuoles shrink and turgor pressure is reduced  compromising the plant's rigidity so that wilting takes place.

5 0
3 years ago
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Which lists the substances from least acidic to most acidic
brilliants [131]

Answer:

a. ammonia, blood, milk, orange juice

b. orange juice, milk, blood, ammonia

c. ammonia, milk, blood, orange juice

d. orange juice, blood, milk, ammonia

Explanation:

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8 0
2 years ago
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